07 waste water treatment

Waste Water Treatment

Uponor Infrastructure Waste water treatment system

Uponor Waste water treatment system

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Waste Water Treatment

Uponor waste water treatment system 7.1 Waste water treatment system – Introduction.....................................242 Dimensioning....................................................................................................245 Uponor infiltration system .............................................................................. 258 General advice..................................................................................................261 The purification process.................................................................................. 262 Site of waste water treatment system............................................................. 263 How to install an Uponor septic tank 2 m3 .......................................................265 How to install an Uponor septic tank 4 m3 ...................................................... 267 How to install an Uponor septic tank 6 m3 ...................................................... 268 Risers – installation instructions.......................................................................270 How to install an Uponor distribution chamber................................................271 How to install an Uponor infiltration/sand filter trench system...................... 273 How to install an integrated pump system from Uponor.................................276 How to install a pump chamber from Uponor..................................................278 How to install a holding tank........................................................................... 280 Inspection and maintenance instructions........................................................ 284 Uponor infiltration module system.................................................................. 286 How to install an infiltration module system................................................... 289 Dimensioning....................................................................................................291 Positioning with regard to the groundwater table...........................................292 Infiltration trench – size and design.................................................................293 Sand filter trench – size and design................................................................. 294 Parallel sand filter trench – size and design.................................................... 296 Self-monitoring – inspection and maintenance............................................... 298 Uponor anchoring system installation............................................................. 300 240

Uponor Waste water treatment system

Uponor Waste water treatment system

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Uponor Holding Tank 5.3 m3 ........................................................................... 305 Installation instructions for holding tank 10 m3 .............................................. 309 Assembly instructions.......................................................................................315 Operating instructions......................................................................................316 7.2 Uponor Small Sewage Treatment Plants and Phosphorous Removal Solutions................................................................................... 317 General presentation........................................................................................320 Planning............................................................................................................323 Installation and Commissioning of Clean I........................................................325 Commissioning of wireless alarm system..........................................................332 The usage........................................................................................................ 334 Troubleshooting chart for Clean I.....................................................................337 Installation of Small Sewage Treatment Plant 10 and 15................................ 338 Installing the Switch Cabinet, Small Sewage Treatment Plant 10 and 15.................................................................................................339 Operation........................................................................................................ 342 Service............................................................................................................. 347 Sludge emptying instruction, Uponor Small Sewage Treatment Plant 10 and 15................................................................................................ 349 Troubleshooting chart..................................................................................... 350 Clean Easy function......................................................................................... 354 Installing Uponor Clean Easy............................................................................355 Self-inspection/maintenance instruction Uponor Clean Easy......................... 358 Uponor Phosphorous Removal Chamber - easy to install, maintain and use............................................................................................. 360 Cost-effective phosphorous removal...............................................................361 Packing list - Uponor Phosphorous Removal Chamber................................... 362 Phosphorous Removal Chamber Function....................................................... 363 Installing Uponor Phosphorous Removal Chamber......................................... 364 Self-inspection/maintenance instruction Phosphorous Removal Chamber.............................................................................................370 Self-check/maintenance instruction - Other.................................................. 372 Contact information.........................................................................................374

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7.1 Waste water treatment system – Introduction Uponor's solutions for waste water systems are used for houses and properties which are not connected to the municipal waste sewer network. This applies primarily to holiday home areas as well as houses in the countryside.

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The basic principle for an infiltration system is that sewage from a property is transported to a septic tank where the sludge is allowed to settle and from which the water is then transported onwards for subsequent treatment. The sewage is infiltrated through the existing or constructed layer of soil, meaning it is treated naturally.

If the local conditions mean the infiltration principle cannot be used, you can install a small sewage treatment plant which replaces the septic tank and the subsequent treatment.

A traditional infiltration system is robust and easy to set up, either as • gravitational infiltration • Infiltration with pumping (no gravitation)

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However, there are various local conditions that may impede a traditional infiltration system. For example, the groundwater may be too high, there may be poor soil conditions or areas where particular attention must be paid to protecting the potable water supply.

If it is not possible to set up a traditional infiltration system, there is a range of other solutions to choose from: • Sand filter trench with phosphorus trap • Small sewage treatment plant • Holding tank • Dry toilet • Uponor's extensive product range covers most installation situations.

• The complete range is set out in a separate product list/price list in Uponor’s web site.

Uponor Waste water treatment system

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Infiltration.

Infiltration with infiltration modules.

Infiltration with pump system.

Sand filter trench system.

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Combined systems

A

B

C

D

E

F

Infiltration system with phosphorus trap.

Small sewage treatment plant

Clean Easy with infiltration.

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Uponor Waste water treatment system

Dimensioning

The size of the septic tank depends on the number of people (PE = person equivalent) that it needs to hold sewage from. Each person (PE) represents a load of 150-200 litres of sewage per day and one household equals five people.

It is important to bear in mind that the general advice consists of recommendations; you should always carry out a thorough calculation/plan of the functionality of the entire system. The tables included in this section are merely intended as directional.

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In this section we will go through the dimensioning of septic tanks and infiltration/sand filter trenches in general.

Uponor's technical support is always on hand for any further assistance concerning the calculation of the system's size.

Use the table below for dimensioning according to the number of PE.

Dimensioning of the number of PE in respect of the sewage from the property Category of activity etc. Calculation basis Equivalent number of

Single family house Workshops Employed person

permanent residents (PE) 5 1/2

Offices Employed person

1/2

Shops Employed person

1/2

Schools Pupil numbers

1/3

Restaurants Capacity

1/2

Summer restaurants Outdoor serving capacity Factories Employed person per shift Society and club houses

Capacity

1/10 1/2 1/10

Meeting premises without a restaurant Capacity

1/30

Hotels Number of beds

1 1/2

Care homes Outdoor serving capacity

2 1/4

Table 7.1.1 Uponor Waste water treatment system

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General construction of Uponor's septic tanks and infiltration systems

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The septic tanks are constructed so that optimal separation of sediment particles and liquid substances can be guaranteed.

This is achieved by reducing the water crossflow through the individual chambers. This prevents the infiltration pipes from clogging, something which in the longer term could cause the entire system to cease functioning.

In each infiltration system, the sewage trickles down through the layers of earth.

Then the residual elements of the sewage are broken down with the help of oxygen which is supplied via the ventilation pipes and the oxygen that exists in the soil.

Uponor's standard septic tanks for 5 and 10 PE are designed to hold waste water sludge from one or two houses respectively with emptying once a year.

tank. The settling volume ensures that the retention time in the tank is always sufficient.

The total volume of the tank includes both the settling volume and the sludge volume.

It is possible to reduce the total volume of large septic tanks. You achieve this, for example, by emptying the tanks twice a year so that the volume of sludge is halved. This provides a saving in terms of the main investment in the system but then the tank must also be emptied twice a year.

The settling volume is the volume which is always in the tank – even when the tank is filled with sludge, i.e. immediately before it becomes necessary to empty the Infiltration systems should always be installed by an authorised water and waste water engineering company.

The pump for pressure infiltration must be connected by a qualified electrician. Then you can be sure that the relevant legal provisions have been fulfilled and that the installation is completed with the necessary expertise.

The sludge volume is the volume which intended for storing bottom sludge and floating sludge.

Use the table below to calculate the size of the septic tank.

Designing the septic tank volume Volume (m3) Recommending number of PE

2

1-5

3

1 - 5*

4

6 - 10

6

11 - 15

8

16 - 20

10

21 - 25

12

26 - 30

15

31 - 42

* With large amount of sewage

Table 7.1.2 246

Uponor Waste water treatment system

Infiltration systems with a pump chamber are used, for example, in areas with a high groundwater table, where the water must be raised to the pressure infiltration trench in order to meet the distance requirements between the groundwater table and the bottom of the infiltration pipe trench. The recommended distance is 2.5 m and the minimum distance 1.0 m.

By pumping the sewage to the infiltration trench, you can be sure that the water is distributed evenly over the entire surface.

Gravity infiltration may be used in situations where the sewage can flow by gravity, i.e. where there is a sufficient incline in the flow pipes between the septic tank and the infiltration trench.

Uponor Waste water treatment system

This also requires the distance between the bottom of the infiltration pipe trench and the groundwater table to correspond to the recommended 2.5 m, although at least 1.0 m is necessary.

You must also check case-by-case if a pump or gravity infiltration system is to be laid. This analysis should be performed by a water and waste water engineering company before the installation is begun, in consultation with the local authority.

We recommend that you pump the sewage for large infiltration systems with a capacity >15 PE, since it is then a question of large quantities of water which will be distributed over a large infiltration area. For this purpose, Uponor manufacturers pipes which guarantee optimal distribution over all passes within the infiltration trench.

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Infiltration with pump systems or gravitational infiltration

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Choice of purification method A site survey should be carried out before the application/notification is submitted to the local environmental heath department. The survey will tell whether the intended site of an infiltration system is suitable or if another purification method needs to be chosen.

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The soil must possess the necessary capability – infiltration capacity – to absorb the penetrating sewage. The soil also needs to be able to transport away infiltrated water – hydraulic capacity – so that the groundwater table below the system does not rise to an unacceptable level.

To be able to determine the soil's ability to absorb waste water (infiltration capacity), test pits need to be dug in order to take samples of the soil and establish the particle size distribution. For a system meant for a single household, we recommend digging at least two pits in the intended site of the system. If the area is homogeneous, one pit may be sufficient.

Dig the pit to a depth of 2-2.5 metres and take soil samples for every layer that the waste water is meant to infiltrate through. The top layer of soil containing lots of organic matter is normally excluded. At least 0.5 litres of matter must be taken from the layer. One sample must be taken in each layer from the level where the infiltration pipe will be laid.

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If the layer is unclear or the position of the infiltration pipe difficult to calculate, soil samples can be taken at the 0.5, 0.75, 1.00, 1.50 and 2.00 metre levels below the soil surface. Mark every sample with the name of the pit, the date and the depth. If groundwater is found at a depth of less than 2 metres, the sampling should go down to at least 0.5 m below the groundwater surface for several reasons, including checking for any bedrock. In fine-grained soil especially, the test pit should be left open for several hours or for as long as it takes for the groundwater level to stabilise. These should then be sent for analysis where a particle size analysis will be performed and the lab normally also determines the infiltration capacity of the relevant layer of soil (see the diagram below).

Grading curve drawn after a particle size analysis

100%

Mass %

80% 60% 40% 20% 0,025

0,5

1

2

4 d (mm)

Figure 7.1.3

Uponor Waste water treatment system

Examples of results after particle size analysis 1. The grading curve falls entirely within field A. The infiltration system can be chosen. The load is selected as 50-60 l/m2xd (litres per square metre and day). The right-hand value is then selected since the curve mainly falls in the right-hand section of the field.

2. The grading curve mainly falls within field A with a small section in field B. The infiltration system can be chosen.

The load should not exceed 40 l/m2Xd. 3. The grading curve mainly falls within field B with a small section in field A or the grading curve falls entirely within field B. The infiltration system can be

Fine soil Clay

particle size d, mm

0,02

Sand 0,06

0,2

Gravel 0,6

2

6

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Stone & rock

Coarse soil

Silt

0,001 0,002 0,006 100

chosen. The load should not exceed 30Â l/m2xd.

4. The grading curve falls to some extent to the right of field A. The matter is too coarse to enable normal infiltration.

Possible solutions might be reinforced infiltration or a sand filter trench.

5. The grading curve falls to some extent to the left of field B. The matter is far too fine-grained to be suitable for normal infiltration. A possible solution is a sand filter trench.

6. The grading curve falls to some extent outside both field A and field B. Possible solutions are the same as in point 5.

Stone

20

60

200

90 80 70

Field B

60

Field A

50 40 30 20 10 0

Free mesh size etc.

0,063 0,125 0,25 0,074

0,5

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1

2

4 8 20 31,5 63 5,6 11,3 16 22,6 45

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Generally speaking, the following can be said about the soil's infiltration capacity: Grading curve within

Infiltration capacity

Field A

50-60 l/m2 x day

Field B

30-40 l/m2 x day

Outside fields A and B

Individual evaluation

Table 7.1.4

Dimensioning the infiltration:

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Normally 40-60 litres/m2 and day in good conditions (i.e. all of the grading curve falls within field A. 60 l if the majority of the curve falls within the right-hand section of field A). If the majority of the grading curve falls within field B and a small section in field A, we recommend a maximum of 30 litres/m2. There are different variants where the infiltration can be improved via a combination of sand filter trench and infiltration.

much fine-grained material. The grading curve for the sand filter trench must fall entirely within field A. The capacity is 50-60 litres/m2.

Dimensioning the size of an infiltration trench When laying an infiltration sand filter trench, you should allow for 1 m2 to be taken up by a infiltration pipe measuring 1 running metre. For standard systems with a capacity of 5-25 PE, we recommend that the dimension tables below be used to work out the area of the trench: With gravitational infiltration, the sewage is distributed fairly evenly in an infiltration pipe as long as this is no more than 15 metres in length. Longer infiltration pipes should be avoided. Instead you should split it into two or more passes. If the sewage is distributed by pumping, the length of the infiltration pipe can be extended to 20Â metres.

Dimensioning a sand filter trench: Normally concrete sand (foundry sand) or 0-8 mm sand filter trench sand is chosen as this gives the right particle size distribution. Washed sand must always be chosen in order to avoid the trench clogging up. Unwashed sand contains far too

Sewage from toilet water + greywater

Greywater

Number of PE

60 l m2*d

50 l m2*d

40 l m2*d

30 l m2*d

Number of PE

60 l m2*d

50 l m2*d

40 l m2*d

30 l m2*d

5

17m2 20m2

25m2

33m2

5

13 m2

25 m2

19 m2

25 m2

10 33m2 40m2 50m2 67m2

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10 25m2 30m2 38m2 50m2

15

50 m2

60 m2

75 m2

100 m2

15

38 m2

45 m2

56 m2

75 m2

20

67 m2

80 m2

100 m2

133 m2

20

50 m2

60 m2

75 m2

100 m2

25

83 m2

100 m2

125 m2

167 m2

25

63 m2

75 m2

94 m2

125 m2

Uponor Waste water treatment system

Design flow

For a planned system, the max. daily flow must be estimated in order to enable the calculation of the design flow. The information required in this case is: 1. How many people as a maximum are expected to use the system on the day of the year with the heaviest load.

2. How much water is consumed per person and day. For households standard values of 120 l/p for greywater and 170 l/p for toilet water+greywater and day are used. For original systems we can use the data in table 8.1.1 as well as taking into consideration how much water is used to flush toilets or to take showers.

3. The total length of the pipes in the supply system.

4. Leakage per metre of pipe and per day.

Newly laid plastic pipes do not leak while existing concrete pipes may leak several litres per metre.

When the flows are extremely large and brief, flow equalisation should be considered before the septic tank. In such cases the size of the septic tank can be reduced.

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Information on the max. daily flow (l/day), i.e. the flow to the septic tank on the day with the heaviest load, is required to calculate the design flow. If there is a water main, this means the flow can be measured and calculated using the equation below.

Once a design flow value has been worked out, the formulae are used to calculate the septic tank's total volume and wet volume (sedimentation volume and sludge storage volume).

Size guidelines for the septic tank are set out on page 7.

The following equation can be used to calculate a planned system with a leakproof pipe:

Measured max. daily flow Design = flow, m3/h Number of hours per day during

which the sewage flow is distributed in h * 1000

8 h with 26-200 PE and

11 h with 200-500 PE

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Design daily average flow

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The time over which the daily average flow is calculated varies according to the load's time distribution. When there is an even distribution over a time period of a month or more (e.g. in an area with permanent residents), the average daily flow is calculated for a month (max. month).

For brief and intensive load peaks, from a day or so up to just under a month, the average daily flow is calculated during the most intensive week of the year. If flow equalisation is applied, this must be taken into account when calculating the average daily flow.

The design daily average flow with a newly laid leakproof pipe is calculated using the following equation:

PE * Standard value

PE * Standard value PE/d

per person/day

(170 l toilet water+greywater)

(120 l greywater) Des. daily = flow, m3/h 1000

(120 l greywater) Design = flow, m3/h Number of hours per day

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The parameters design daily average flow and recommended surface load are worked out using: • Impurities content: BOD, SS, phosphorus and nitrogen • Which pre-treatment: septic tank, mechanical, biological and/or chemical • The duration of the load period: summer load, weekend load or permanent load • Soil type, i.e. infiltration capacity and hydraulic capacity

during which the sewage

flow is distributed in h * 1000

8 h with 26-200 PE and

11 h with 200-500 PE

(170 l toilet water+greywater)

Uponor Waste water treatment system

If you need to make the calculation for an existing water main, the following equation should be used: Measured daily flow during

max. week/max. month, 1/d Des. daily flow m3/h = 1000

The following equation can be used to calculate the required infiltration area:

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Des. daily flow, m3/d*1000 Area of infiltration = l/m2 d acc. to grading

curve plus consideration of

contamination level,

pre-treatment and duration

of load period

Estimated degree of treatment with the most common treatment methods A septic tank is not a treatment function but a pre-treatment which separates larger particles as well as fat and oils from the household. The degree of treatment is usually low.

BOD

Tot P

Tot N

Septic tank

10–20%

10-20%

10-20%

Infiltration system

> 90%

70%

20-60%

Sand filter trench system

>90

50%

20-60%

> 90%

> 50%

Small sewage treatment plant >90%

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Glossary/explanation of technical terms used for individual drainage systems

Aerobic

Rich in oxygen

Active sludge

Biological sludge for treating waste water consisting of bacteria and other microorganisms which break down the organic matter in the waste water when oxygen is present.

Ammonium

Nitrogen compound with the chemical name NH4+

Anaerobic

Oxygen-free

Greywater

Bathwater, washing-up water and laundry water from households.

Biofilm

Name for the thin layer of microorganisms living in e.g. sand filter

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trenches, infiltration systems and compact filters where the biological purification takes place. Also called bioskin Biological purification

Reduction in oxygen-consuming substances and any nitrogen present using microorganisms living in sand filters, sand filter trenches, active sludge, trickling filters, etc.

Biological toilet

Toilet with a container in which excrement and any other organic waste is composted, also known as a composting toilet.

Mixed waste water

Waste water from households that contains both toilet water and greywater.

BOD

Biochemical oxygen demand; parameter that indicates the content of oxygen-consuming organic matter in the water.

Surface water

Rain and meltwater that does not infiltrate groundwater and is not absorbed by vegetation, but instead runs off from hard surfaces such as roofs, roads and car parks.

Denitrification

Bacterial conversion of nitrate nitrogen (NO3-) into aerial nitrogen (N2).

Drainage water

Water that collects below the soil surface and is conducted away, e.g. with draining foundations.

Dual flush toilet

Urine-sorting toilet which flushes both urine and excrement with water.

Single flush toilet

Urine-sorting toilet that only flushes urine with water. Excrement goes directly to a collection vessel for night soil.

Individual drainage system

Drainage system outside of the municipal water supply and sewerage area. Usually for a single household, but can also treat sewage from several households.

Eutrophication

Supply of nutrients (primarily nitrogen and phosphorus) to a watercourse, often considered to be the same as excessive fertilisation.

Extremely low flush toilet

Toilet that uses less than 1 litre of water per flush.

Phosphorus

Plant nutrient, chemical symbol P

Phosphorus-binding material

Material with good phosphorus-binding capacity. Often chalky, e.g. Filtralite.

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Uponor Waste water treatment system

Distribution chamber

Drain that distributes the waste water evenly to all infiltration pipes, which is necessary if more than one infiltration pipe is used.

Pre-precipitation

When chemical precipitation, including sedimentation of precipitated phosphorus, takes place before the biological treatment.

Geohydrological survey

Survey of groundwater conditions, e.g. distance to the groundwater from the surface of the soil.

-

-

Hybrid toilet

Toilet where the waste is flushed away with water to a container for biodegradation.

Process in which pathogenic microorganisms are killed off so that there

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Sanitisation

is no risk of diseases spreading.

Infiltration

Purification of the waste water by it running through natural layers of soil and being distributed diffusely via the soil to the groundwater.

Potassium

Plant nutrient, chemical symbol K

Chemical precipitation

Addition of precipitation chemical which forms a sparingly soluble chemical compound with phosphate in the waste water.

Toilet water

The waste water from the toilet, i.e. urine, excrement, toilet paper and flushing water.

Compact filter

Prefabricated filter for biological treatment of waste water. Sometimes encased in a box or built with a weatherproofing layer at the bottom.

Diagram of particle size distribution

Results of texture analysis

Cycle

Restoration of the nutrient salts in the waste water to cultivated land.

Nitrogen

Plant nutrient, chemical symbol N

Sand filter trench

Purification of the waste water by filtering through sand and layers of soil; the water is then collected and transported away to a ditch, a river, a lake or to the sea.

Mini purification plant

Prefabricated system based on scaled down technology from large purification plants. Often mechanical, biological and chemical purification, sometimes only biological or only chemical purification.

Earth toilet

Small biological toilet where the waste is collected in a smaller container underneath the toilet; usually needs to be located in a heated room and be connected to an electrical outlet.

Multrum

Biological toilet where the waste is collected in a large container underneath the toilet in which it is broken down biologically; the system can also manage compostable domestic waste.

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Nitrate

Nitrogen compound with the chemical name NO3- formed through oxidation of ammonium.

Nitrification

Bacterial conversion of ammonium nitrogen (NH4+) into nitrate nitrogen (NO3-) which takes place in aerated (rich in oxygen) environments.

Norsk Leca

Porous filter material that binds in phosphorus.

Nutrient salts

Plant nutrients such as phosphorus, nitrogen and potassium.

PE

Person equivalent. A person equivalent is the amount of BOD that corresponds to the average daily BOD emissions per person. One PE corresponds to 70 g of BOD7/day.

pH

The acidity level of the water

Recipient

Lake, watercourse or inlet where the waste water is released. The groundwater can also be a recipient.

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Resorption

Purification technique where the water is released into a shallow, overgrown ditch which is leakproof in the bottom. The purification consists of both the waste water evaporating into the air and organic matter attaching itself to the ditch and undergoing biodegradation.

SBR

Batchwise biological purification (originally from the English term Sequencing Batch Reactor) of the waste water, e.g. in a mini purification plant.

Grading curve

Results of texture analysis, also called diagram of particle size distribution.

Site layout

Site map or drawing of the plot and the planned system also showing e.g. potable (drinking) water wells, property boundaries and access roads.

Sludge

Solid particles and fat which have been separated from the waste water.

Septic tank

Tank in which solid particles and fat are separated from the waste water.

Holding tank

Tank which collects toilet water; should ideally only be connected to extremely low flush toilets.

Low flush toilet

Toilet that uses less water for flushing than normal toilets. Usually there is an economy flush (2 l) and a large flush (4 l). See also extremely low flush toilet.

Sewage

Collective name for all waste water in a household.

SS

Suspended solids, i.e. particles in the waste water.

Culvert

Very simple infiltration system where uncontrolled infiltration takes place, which leads to insufficient purification. Should only be used for surface water.

Foul water

Another name for toilet water.

Oxygen-consuming substances

Organic substances in waste water that consume oxygen when they are broken down and therefore can cause a lack of oxygen in watercourses.

Tensides

Chemical compounds (e.g. in washing-up and laundry detergents) that reduce the surface tension of water, allowing the water to enter e.g. textiles and stains and make them wet.

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Uponor Waste water treatment system

Texture analysis

Analysis carried out when a soil sample is graded in order to determine the particle size.

Feed pipe

Pipe that combines all waste water from a household

Three-chamber septic tank

Septic tank in which the water passes through three chambers.

DS

Dry substance, often indicated as a percentage of total weight or volume.

Two-chamber septic tank

Septic tank in which the water passes through two chambers.

Waste water with urine separation

Waste water from households with urine sorting in dual flush urinesorting toilet, i.e. greywater and excrement + flushing water.

Urine sorting

Separation of urine from excrement in the toilet.

Vacuum toilet

Toilet in which water is not used to transport the waste but only to rinse the bowl; pressure in the pipes is created using vacuum pumps,

Source of water supply

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ejectors or blowers.

Watercourse (including groundwater) used as raw water for producing drinking water.

Excessive fertilisation

A supply of nutrients (mainly phosphorus and nitrogen) to a watercourse which is too high, leading to problems such as algal bloom and oxygen deficit.

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Uponor infiltration system

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There are a number of different standard system solutions for Uponor's infiltration systems with gravity: • Infiltration system with infiltration pipe(s) • Sand filter trench with infiltration pipe(s) • Integrated pump systems in septic tanks for infiltration and sand filter trenches • Separate pump systems for infiltration and sand filter trenches

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• Combined systems with a holding tank plus infiltration and sand filter trenches • Infiltration system with infiltration modules • Sand filter trench system with infiltration modules In addition, Uponor can customise solutions based on plans or other requests.

Uponor Waste water treatment system

Waste Water Treatment

Vital to have a properly functioning waste water treatment system

The most common setup tends to be individual drains laid in the plot itself or in directly adjacent land. In other words, the home owner will be the first one to suffer if the system stops working correctly. So it would be wise to ensure that the installation of the drain system is carried out properly. And check that the components have the correct function and the correct materials are used.

With this chapter we want to help to plan the waste water treatment system properly so that the work is done correctly.

Get help from experts at the local council too. A problem-free waste water system not only gives a better local environment and greater peace of mind, but also lower costs due to less maintenance and a longer service life. What's more, it

Uponor Waste water treatment system

will maintain the value of the property if there is a properly functioning waste water treatment system.

It is reassuring to have a waste water treatment system that does not stand out or pollute the environment. The smell from an underperforming system is always a nasty reminder for those passing nearby, just as untreated water leaking out very quickly has a nasty effect on surrounding vegetation and pools of water. Waste water running over the ground can also easily reach sources of water supply and make drinking water insanitary, amongst other things.

Groundwater and water in our bathing lakes are also sensitive to pollution and must therefore be protected from contaminated sewage.

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Choose the right site

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When planning an individual drainage system, it must take into account the size of the household, i.e. the waste water produced as well as the following: • Ground conditions, terrain and soil types • Groundwater conditions • Topography and slope conditions • Proximity to source of water supply • Depth to the bedrock • Topography of the bedrock • Proximity to lake or watercourse • Climate and the ground frost conditions • Local regulations for the area • Proximity to roads • Distance to road and property boundaries

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Someone from the local authority's environmental health department will come and inspect the intended site for the drainage system. A test pit is often required for a “grading analysis”, i.e. measuring the size distribution of the soil particles. This analysis is also performed in order to study the ground­water conditions, which determine the the ability of the sewage to penetrate the surrounding layers of soil. The environmental health department will also advise on whether to opt for infiltration or a sand filter trench, dimensioning, etc.

Uponor Waste water treatment system

Septic tanks, pipes and components

General advice

Uponor's infiltration systems contain all components required for sludge separation and infiltration or a sand filter trench. Loose parts, complementary septic tanks, non-woven fabric, etc. can also be ordered separately. Uponor also manufactures ground pipes, i.e. the pipes from the house's drainage system to the site of the septic tank as well as any gully traps and similar components.

The drain pipes, septic tank and distribution chamber must be backfilled with sand or fine gravel. Tread down thoroughly.

The incline must be levelled out carefully using a spirit level. The infiltration pipes in particular must have an incline as instructed. Make sure that the surface water is drained off above the infiltration and sand filter trench.

Sand and crushed stone The quality of the sand and crushed stone material used should follow the guidelines. The crushed stone must be washed to avoid the pipes and trench filling up with sludge. If this is not done, the service life of the system may be reduced. The material-separation course between the layers of the trench should consist of finer gravel (garden gravel).

Non-woven fabric should be used on top of the trench in order to separate the backfill material (humus) from the crushed stone.

Uponor Waste water treatment system

Waste Water Treatment

General advice

Note!

The house’s drains must be ventilated on the building’s roof, above the ridge.

A vacuum valve must not be used.

Septic tanks should normally be emptied at least once a year. The infiltration pipe must be connected above ground level to ventilation cowls. This increases the purification capacity and allows for inspection and cleaning.

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The purification process Two-step purification

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When an individual drainage system is in place, the sewage is treated in two stages. The first is always sludge separation. This is done in a tank called a septic tank or sludge separator, previously known as a three-chamber septic tank.

The second is performed either in an infiltration trench or a sand filter trench.

treated in a sand filter trench instead and then drained into the natural landscape.

The sand filter trench consists of a sand bed in which the waste water is filtered and purified before being drained and transported away.

Picture 1 Septic tank This is a tank in which the waste water passes through different compartments (chambers). In Uponor's septic tanks are positioned so that the flow of the water is as slow as possible so that the coarsest particles sink to the bottom in all of the chambers while fat and oil rise to the surface. The water is then transported away via a distribution chamber for purification in the infiltration trench or sand filter trench.

Sedimentation volume Sludge volume

1. Septic tank

Picture 2 Infiltration trench This is the commonest type of posttreatment step. The ground's ability to absorb sewage determines whether such a system can be used. In the infiltration trench the purification takes place in the bottom on the crushed stone layer and in the surrounding soil layers.

2. Infiltration trench

Picture 3 Sand filter trench In those cases where the ground's absorption capacity is poor, e.g. due to high groundwater or layers of soil that are too dense such as clay, the water must be 262

3. Sand filter trench Uponor Waste water treatment system

Site of waste water treatment system

Proximity to road for suction vehicles Distance to road and property boundary at least 5 m

Safety distance to lake and watercourse 10-30 m

Distance to ditch normally 10-30 m

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Source of water supply Direction and distance to source of water supply within 200 m

Risk of surface penetration

Draw up a site plan When planning a drainage system, a site plan must be drawn up first. This is used both for the application to the local environmental health department and for planning the work. There should also be a drawing of a cross-section in which the grade of crushed stone and sand are made clear as well as providing a drawing which shows how the system will be built (see next two-page spread).

Position on the plot The septic tank must be located so that it can be accessed easily by the local authority's sludge-emptying trucks.

The area required is only approx. 6 m2.

Uponor's septic tanks have a modern design which sees them installed horizontally, reducing the pit depth and volume.

Uponor's distribution chamber requires little space and only a shallow depth and Uponor Waste water treatment system

is easy to connect to distributor pipes in various directions according to requirements. In order to reduce clogging, exploit the topography so that the ground pipes from the house have an even incline; avoid unnecessary bends.

Uponor recommends that a gully trap be fitted to the drain pipe immediately outside the foundations. This facilitates the flushing of the pipe in the event of a blockage. The infiltration or sand filter trench for a typical 5-person household only takes up an area of approx. 30 m2.

The septic tank or trench should not be put somewhere that means vehicles pass by it as this results in greater ground pressure.

The illustration above provides examples of safety distances for, amongst other things, roads, boundaries, lakes and watercourses.

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Infiltration trench Separate passes Non-woven fabric

Infiltration pipe

40 cm

A

Crushed stone 12-24 mm/ 16-32 mm 100 cm

min. 200 cm

100 cm

80 cm

Infiltration pipe Soil backfill

A = Min. 5 cm

Sand filter trench

Infiltration pipe

Collection pipe A 40 cm

Crushed stone 12-24 mm/ 16-32 mm Materialseparation course 4-8 mm Sand filter trench sand 0-8 mm

40 cm

A

80 cm

Non-woven fabric Soil backfill

80 cm

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Separate passes An infiltration or sand filter trench system can be laid as a standard field where the distance between the pipes is 1.5 m.

Alternatively, they can be laid as separate ditches where the distance between the pipes is approx. 2 m.

Crushed stone 12-24 mm/ 16-32 mm A = Min. 5 cm

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How to install an Uponor septic tank 2 m3 

Installing the septic tank

Anchoring

The pit for the septic tank is dimensioned so that anchor plates can be located next to the tank. The pit should be approx.

15 cm deeper than the bottom of the tank. Level out a layer of gravel or sand on the bottom of the pit and compact the bottom. Lower the septic tank into the pit using lifting ropes. Check that the level of the tank is correct in respect of incoming drain pipes and that the tank is balanced.

If the ground is marshy, the septic tank must be anchored using the Uponor Anchoring System. Place straps over the tank. Position the anchor plates level with the bottom of the tank and completely outside of the tank's bottom area. Pretension the straps. Place a layer of sand approx. 20 cm thick on the anchor plates.

Tighten the straps so that they are taut.

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System for all waste water, Uponor septic tank.

Anchoring the septic tank

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Backfilling the pit

Built-in control unit

Backfill around the septic tank with stonefree sand and compact with a vibratory soil compactor in layers approx. 30 cm thick.

Connect the 110 mm drain pipe from the dwelling (incline 1-2 cm/m) to the inlet spigot of the septic tank. The house's drains are always ventilated via the roof.

Fit the outlet of the ventilation pipe a fair distance above the roof ridge and as far as possible away from the intake air inlet.

Finally, fill the septic tank with water.

The septic tank is fitted with two 90 mm outlet spigots. Rubber sealing rings are placed on the spigots and then flexible bends. The flexible bends allow you to position the pipes in the correct direction.

Connect the distributor pipes to the flexible bends.

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The distribution of water to the trench Septic tanks are available in different types and sizes. The water distribution can take place either via a separate distribution chamber or using a control unit built into the septic tank. A trench which is fitted with a distribution chamber can hold 2-6 infiltration pipes while a trench for a septic tank with a built-in control unit can have two infiltration pipes. A distribution chamber allows you to position the septic tank and the trench wherever you want in relation to each other.

Insulation Insulate the tank and other parts near the surface with insulating sheet if the frost tends to be deep.

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Setting the built-in control units The septic tank must be filled with water when the control units are set. There is a grey liner pipe inside the control units.

Position each liner pipe's marked steps so that they are at the same level as the water. This means the water flows to the infiltration pipes are the same size.

An even load across the entire trench extends the system's service life and improves the purification effect.

Fill the septic tank with clean water • immediately after installation • after each emptying.

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Assembly

Step 3:

The length of connecting pipes and ventilation pipes is suitable for a gap of 600 mm between the tanks. If the tanks are located closer together, the pipes must be cut down accordingly.

Backfilling and compaction can now take place to the level just underneath the holes for the ventilation pipes. Once the rubber rings and pipe ends have been greased, the ventilation pipes can be fitted in the same way as the connecting pipes.

All pipes must have a minimum projection of 100 mm inside the tank wall. The predrilled holes for the ventilation pipes are positioned so that it is possible to mount these pipes after the tanks have been assembled and the backfill has been done up to the level just underneath the predrilled holes for the ventilation pipes.

Step 1:

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How to install an Uponor septic tank 4 m3 

Step 4: Fit the rubber rings for the risers to the tanks and then position the risers.

Step 5: Backfilling and compaction.

Inlet tank

Outlet tank

Position the inlet tank.

Connect the supply pipe to the inlet pipe on the tank. Grease the sealing ring and the end of the connecting pipe. Insert the connecting pipe into the inlet tank at least 200 mm.

Step 2: Position the outlet tank, 600 mm from the inlet tank (or closer if preferred, see note above).

Grease the sealing ring and the end of the connecting pipe from the inlet tank.

Route the connecting pipe back from the inlet tank so it enters the sealing ring on the middle tank. The pipe must have a projection of approx. 100 mm inside the tank walls.

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How to install an Uponor septic tank 6 m3  Assembly The length of connecting pipes and ventilation pipes is suitable for a gap of 600 mm between the tanks. If the tanks are located closer together, the pipes must be cut down accordingly.

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All pipes must have a minimum projection of 100 mm inside the tank wall. The predrilled holes for the ventilation pipes are positioned so that it is possible to mount these pipes AFTER the tanks have been assembled and the backfill has been done up to the level just underneath the predrilled holes for the ventilation pipes.

Step 1: Position the inlet tank.

Connect the supply pipe to the inlet pipe on the tank.

Grease the sealing ring and the end of the connecting pipe.

Insert the connecting pipe into the inlet tank at least 200 mm.

Grease the sealing ring and the end of the connecting pipe from the inlet tank.

Route the connecting pipe back from the inlet tank so it enters the sealing ring on the middle tank. The pipe must have a projection of approx. 100 mm inside the tank walls.

Step 3: Position the outlet tank, 600 mm from the inlet tank (or closer if preferred, see note above).

Connect the connecting pipe as in step 2.

Step 4: Backfilling and compaction can now take place to the level just underneath the holes for the ventilation pipes. Once the rubber rings and pipe ends have been greased, the ventilation pipes can be fitted in the same way as the connecting pipes.

Step 4: Fit the rubber rings for the risers to the tanks and then position the risers.

Step 2: Position the middle tank, 600 mm from the inlet tank (or closer if preferred, see note above).

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Step 5: Backfilling and compaction.

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Inlet tank

Middle tank

Outlet tank 100

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100

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Risers – installation instructions

D B

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C A

1. Fitting risers

E

Position the sealing ring (A) on the neck (B) of the tank. Grease the socket end (C) of the riser with Uponor lubricant.

Place the riser (C) so that the text “IN” on the riser pipe is facing the tank's inlet.

Press down the riser so that the neck of the tank fits right into the riser's socket.

2. Extending risers To extend a riser, cut it down to the “Cutoff line” (D) in the middle of the riser.

Use Uponor's 560 mm extension pipe and cut it down to a suitable length. Place a seal ring in the second groove in each end of the extension pipe (E). Fit the bottom section of the cut riser as per step 1. Fit the extension pipe and then the top section. Max. installation depth is 1 metre from invert inlet to ground level.

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Distribution chamber Place the distribution chamber in the pit on an even and well-compacted bottom.

Check that the height of the drain is correct with regard to the septic tank and infiltration field. Fit the 110 mm drain pipe to the distribution chamber’s socketed inlet spigot. Check that the inlet spigot elbow inside the distribution chamber is pointing straight down.

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How to install an Uponor distribution chamber

• close all regulating dampers • fill with water above the regulating dampers • open a regulating damper halfway • allow the water to sink to a new level • open the remaining regulating dampers to the water surface level

Flow adjuster Fit a lip seal (E) to the hole of each outlet spigot. Mount the flow adjuster in the distribution chamber by pushing the connecting part (F) from outside into the connection. Position the adjusting plate (G) from inside the distribution chamber.

It is important to set the flow adjusters so that an equal amount of water is brought into each distributor pipe. Check the setting once backfilling around the drain is complete by pouring water into the bottom of the distribution chamber and placing the adjusting plate so that the opening is at the same level as the water surface.

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Extending or shortening the drain

Fitting outlet spigots

In order to extend the distribution chamber, you saw off the top part of the neck of the drain (marked “Cut-off line”, A). Use a 400 mm extension pipe. Affix a rubber ring to both pipe ends (B) and push a pipe end on to the bottom part of the distribution chamber. Push the top part of the drain into the other pipe end.

The extension pipe must be pushed in until it hits the “shoulders” at the bottom and top of the drain.

The distribution chamber has two pre-drilled holes for outlet spigots.

Additional outlet spigots can be fitted by drilling Ø 121 mm holes where there are drill marks (D). A maximum of six outlet spigots can be connected to the distribution chamber.

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When shortening the drain, cut both above and below the necks (A and C) on the drain (marked “Cut-off line”). Use a 400 mm pipe when shortening. Position it as described above. The minimum length of the shortening pipe is 200 mm.

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Distributor pipes The distributor pipes connect the distribution chamber to the infiltration pipes.

The length of these pipes is at least 1 metre and they are connected to the outlet spigots of the distribution chamber. A suitable incline is 0.5-1 cm/m.

Position the pipes on a compacted sand bed and cover with sand or fine gravel.

By fitting flexible bends to the end of the distributor pipes, it is possible to turn the infiltration pipes to face the correct direction.

Uponor Waste water treatment system

How to install an Uponor infiltration/sand filter trench system The distribution layer is a 30-40 cm thick layer of washed crushed stone with a particle size of 12-24 or 16-32 mm. The soil on the bottom of the pit must be horizontal and even, but not compacted – do not trample on it or use vehicles to flatten it. The pit can be common to several infiltration pipes or a separate ditch can be dug for each pipe. The separate ditches can be facing different directions from the distribution chamber.

2. Infiltration pipes Level out the bottom of the pit in order to form a base for the layer of crushed stone. Position the infiltration pipes in the layer of crushed stone (green stripe facing upwards) so that the incline of the

pipes is 0.5-1 cm/m and so that there is at least 30 cm of crushed stone under the pipes. At least 5 cm of crushed stone (8-16 or 12-24 mm) must cover the pipes.

The total thickness of the layer of crushed stone is 30-40 cm. Fit flexible bends to the outlet ends of the pipes and then connect ventilation pipes (picture 9) to these which will stick out above the snow during the winter. The distance between the infiltration pipes in the same direction in separate ditches must be at least 2Â metres. The distance between the pipes in a shared pit must be at least 1.5Â metres. The max. length of every single Infiltration pipes is 15 metres. The pipes can be extended using connecting sockets. Finally, place the non-woven fibre on the crushed stone and backfill the pit.

Waste Water Treatment

1. Distribution layer

Infiltration system, steps 1-2

Where necessary, the infiltration system can also be supplied with a separate built-in distribution chamber.

In this case the control units will be in the septic tank. See the instructions on the previous two-page spread.

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3. Filtering layer

5. Collection pipes

Water purification takes place in the layer between the crushed stone and the sand.

Phosphorus binds to the sand and the organic substances are broken down in the bio layer. The filtering layer consists of sand with a particle size of 0-8 mm.

The layer is approx. 85 cm thick. On top of the filtering layer is a distribution layer, non-woven fabric and backfill earth.

The collection pipes are drainage pipes through which the treated water is led away. Place the collection pipes in a collection layer with an incline of 0.5‑1.0 cm/m.

The pipe system continues on from the collection pipes after flexible bends in ventilation pipes for quite a distance above ground level. Fit ventilation cowls to the ventilation pipes as in picture 9.

4. Collection layer

6. Outlet well

The collection layer is the bottom layer of the sand filter trench and its task is to collect the treated waste water which is then led to the outlet drain via collection pipes. Collection gravel with a particle size of 8-16 or 12-24 mm is used in the collection layer. The collection layer is approx. 30 cm thick.

The collection pipes are routed to an outlet well that also functions as a sampling well. The well is fitted with a socketed inlet spigot which the drain pipe can be connected to directly. Level out a base for the outlet well at a suitable height.

Position the outlet well vertically and fill sand around the well. Large sand filter trenches can have several outlet wells.

Sand filter trench system points 1–8

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Uponor Waste water treatment system

7. Outlet pipe The treated water is transported from the collection drain through an outlet pipe (110 mm) to a suitable location in the terrain, e.g. an open ditch. If the differences in levels on the plot are not suitable for a sand filter trench system, the treated water must be pumped to the outlet location. The outlet pipe's opening should be fitted with a grille or a cover to stop small animals entering the system.

9

8. Leakproof sand filter trench Ventilation pipes are fitted to the outlets of the infiltration pipes. Ventilation cowls are installed at the ends of the pipes.

Waste Water Treatment

A leakproof sand filter trench has a rubber sheet laid on the bottom of the pit for the sand filter trench. The rubber sheet prevents waste water from penetrating the groundwater. See the installation instructions on the next page.

8

The rubber sheet is also placed over the ends of the pit. Ensure that the rubber sheet is not damaged when it is laid out.

The edge must not be folded over the side of the sand filter trench as this will block the air supply to the microorganisms that are present in the soil.

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How to install an integrated pump system from Uponor

3.

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4.

2.

1.

Septic tank with pump chamber Uponor's pump system includes a 2 m3 septic tank, a pump chamber, a submersible pump and infiltration pipes designed for a 30Â m2infiltration trench. The septic tank's inlet spigot is 110 mm and the outlet spigot fits a 40 mm pressure pipe.

Install the septic tank with pump chamber as described.

pipe from the pump with a quick-release coupling. The pipe must not be twisted. If the pressure pipe from the septic tank is cut to size, the guide tube from the pump must also be cut to size. Connect from the pump to a 40Â mm outgoing pressure pipe fitted with a quick-release coupling.

Installing the pump and pressure pipe The pump is assembled at the factory.

Fit the pump to the side of the pump chamber using a bracket which is attached to the outgoing pressure pipe. The pump must always be fitted in the bracket already attached. The pump system is supplied with a separate fixed-length pressure pipe which connects to the outlet spigot using a flexible pressure hose. Fit the separate pressure pipe to the pressure

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A reducer adapter with seals is provided for connecting up the pressure pipe. If possible, lay the pressure pipe with a infiltration pipe 1–2 metres in front of the distribution chamber. This slows down the incoming water flow.

Power cable The pump's power cable is an MCMK 3 x 2.5 mm2. Feed the power cable in from the wall of the riser pipe through a feedthrough seal. Electrical installation may only be carried out by a qualified electrician. Any excess cable must be coiled up and not left loose in the well as this can obstruct the floating switch's movement.

Replacing or maintaining the pump Always install the pump in the original bracket after it has been taken away for repair or service or when replacing the pump. This ensures that the pump is always in the correct position in the pump chamber and also makes sure that the floating switch operates smoothly. Disassemble the quick-release coupling when the pump needs to be repaired or maintained and lift the pump out by holding on to the pressure pipe. The length of the floating switch must be 28 cm so that it can move freely in the pump chamber. The pump is equipped with a non-return valve.

For ventilation to work, a separate ventilation pipe must be routed between the septic tank and the distribution chamber at a level above the surface of the liquid.

Further information on the pump's functionality/maintenance is available in the pump supplier's installation instructions.

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Connecting to the distribution chamber

The power of the submersible pump included in the package is sufficient for a lifting height of 8 m with a flow rate of 2 l/s. The table shows the max. distance between the pump chamber and the distribution chamber at a lifting height of 2 metres when the accompanying pump is used.

Diameter of

Distance between pump chamber

the pressure pipe

and distribution chamber

40 mm

< 70 m

50 mm

< 200 m

63 mm

< 500 m

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How to install a pump chamber from Uponor

The septic tank and infiltration or sand filter trench are installed as described in previous pages.

1. Pump chamber Install the pump chamber horizontally on a flat bed of sand. Anchor the drain with the Uponor Anchoring System if the ground is marshy or the groundwater is near the surface. The pump chambers are available in two sizes: 0.5 and 1.0 m3. Select a submersible pump with a floating switch that has sufficient power for a flow rate of 1.0 l/s for the lifting height between the pump chamber and distribution chamber. The majority of pumps on the market are suitable for use with the well.

3. Pump Suspend the pump (Picture 1) on the pump chamber’s brackets slightly below the centre of the well. NB! The pump's outlet side must be equipped with a non-return valve which stops the water flowing backwards into the pressure pipe.

2. Reducer adapter 110/40 Fit a reducer adapter to both the pump chamber’s outlet and the distribution chamber’s inlet. Push the end of the Ø 30 mm pressure pipe through the adapter in both wells.

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4. Polyethylene pipe (PE)

Install a PE pressure pipe between the pump chamber and the distribution chamber. Connect the pipe according to the pump manufacturer's instructions.

For connecting the PE pressure pipe to both wells, two reducer adapters with seals are included in the delivery of the pump chamber. If possible, lay infiltration 4. Polyetenrör (PE) ltreringspipes (1–2 cm/m) at least 1–2 metres in Montera ett PE-tryckrör mellan gs enligt front of the distribution chamber. This pumpbrunnen och fördelningsående sidor. slows down the incoming water flow into brunnen. Anslut röret enligt pumpthe well.

5. Power cable Connect a power cable suitable for surface installations at the neck of the well.

NB! Mark the location of the cable on your drawings. It is always safest to allow an electrician to carry out the electric connection.

(Picture Thedränkbara submersible pump (bild 1) 1) Den pumpen installed in ithe pump chamber. monterad pumpbrunnen.

5.

3.

Uponor Waste water treatment system

Waste Water Treatment

tillverkarens anvisningar. För anslutningen av PE-ryckröret till grätt på en NB! Use a flexible pressure hose båda brunnarna ingår två redua brunnen inside the well! ceringar inklusive tätningar i ssystem om leveransen av pumpbrunnen. undvattnet A PE pressure pipe is quite rigid and the Lägg om möjligt med självfall (1-2 narna finns connection to the pump can cause the cm/m) åtminstone 1-2 meter före 1,0 m3. Välj pipe to become twisted at an angle. This fördelningsbrunnen. Detta dämpar nivåvippa is why it is best to use a flexible pressure vatteninflödet i brunnen. kt för ett hose for the part located inside the well, Obs! Använd en flexibel fordringsi.e. between the pump and the feedtryckslang inne i brunnen! unnen och through on the outlet side in the pump e flesta chamber. If the pump has a non-return Ett PE-tryckrör är ganska styvt n passar i valve, the ventilation must be routed with och anslutningen till pumpen kan a separate ventilation pipe between the orsaka att rörets vrids snett. Därför septic tank and the distribution chamber är det bäst att använda flexibel drain at a level above the surface of tryckslang för den del som är inne åde i pumpthe liquid. i brunnen, d v s mellan pump och ördelningsgenomföringen på utloppssidan i ändan på pumpbrunnen . nom unnarna.

5. Elkabel Anslut en elkabel som är lämplig för markinstallationer på brunnens d 1) i hals. Obs! Markera kabelns plats något på dina ritningar. Det är alltid nkt. Obs! säkrast att låta en elinstallatör kall vara utföra elkopplingen. som hindrar tryckröret.

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How to install a holding tank

Installing a closed septic tank The depth of the pit for the septic tank is dimensioned so that anchor plates have space at the bottom of the pit and the drain pipe which is routed to the tank can be covered with soil and be protected with insulation if required.

The greatest permitted laying depth measured on top of the tank is 0.75 m.

The max. groundwater table is 0.5 m from the bottom of the tank. Level out and compact the bottom of the pit until it is horizontal. Drain a pit in clay soil or bedrock so that any running surface water does not load the tank.

Anchoring The Uponor Anchoring System can be used for anchoring. Three anchoring kits

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are required to anchor Uponor's holding tank. Each kit contains two anchor plates and a strap with tensioning device.

Installation instructions are included with the anchoring system. Place the tank horizontally at the bottom of the pit.

The minimum overflow is 450 mm when anchor plates are used.

Connecting the drain Remove the screen plug from the tank and fit the emptying pipe. Position the emptying pipe manifold towards the household drain and connect the drain pipe with a double socket. When backfilling the trench, ensure that the emptying pipe is vertical. Shorten the emptying pipe if required so that the pipe's screw cap protrudes slightly above the ground.

Uponor Waste water treatment system

The sand used to fill the shaft should not contain stones. Spread the filling sand evenly and compact with a vibratory soil compactor in layers approx. 20 cm thick.

Compact the filling sand in the tank's central hole with water or an internal vibrator. If required, protect the tank and drain pipe against frost/ground frost with sheets of insulation.

Alarm sensor

Ø 110

Ø 200

≤ 0.75 m

The conductive sensor comes with a cable 2 metres long and a feed-through for attaching it to the emptying pipe. In order for it to work, the sensor must be attached to the alarm device. Place the alarm indoors in a visible place in a dry area of

the house. Drill a hole which the sleeve for the feed-through goes through (Ø 32 mm) directly underneath the screw cap in the emptying pipe's upper end for the sensor's feed-through. Thread the sensor cable through the sleeve and stretch it out so that the cable's marking tape is level with the upper edge of the drain connection. At this alarm level the tank holds extra water, approx. 200 litres. Change the alarm level by adjusting the sensor's level. A level change of 10 cm corresponds to a volume of approx. 300 litres. Cover the electric cable that is routed underground from the sensor to the house with a protective pipe. Connect the electric cable (e.g. MSK 2x0.75 mm2) and the sensor cable using the supplied connector.

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Backfilling the pit

0.5 m

1,5 m

1m

Ø 2.4 m

The low built holding tank from Uponor is easy to install.

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Important to keep in mind PLANNING Location of the drainage system • Locate the septic tank so that the sludge-emptying trucks can reach it easily.

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• Consult with the local environmental health department about a particle size analysis. It will show the soil's capacity to absorb waste water. Examine the groundwater table and the flow direction above all with regard to the source of water supply.

• Place the system somewhere that no vehicles can drive over the top of it.

The picture on page 4 shows examples of suitable safety distances to property boundaries, watercourses and sources of water supply.

• On a slope, lay the infiltration pipes in directions according to the contours, not down a hill.

• Ensure that surface water drains off from a sand filter trench system or an infiltration system.

• Use non-woven fabric to prevent fine material from clogging the layer of crushed stone.

Dimensioning • The size of an infiltration/sand filter trench that a typical 5-person household needs is only approx. 30 m2.

Check that the area is large enough.

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• A pump chamber which is 0.5 m3 is sufficient for a single family. A well of 1 m3 is designed to serve 2–3 families.

• Only waste water from toilets is generally transported to a closed septic tank.

Ventilation • The ventilation of the house's drains is routed to the roof. Install the ventilation pipe's outlet a fair distance above the ridge of the roof and as far away as possible from the supply air's intake. It is not permitted to use a vacuum valve.

• The ends of the infiltration pipes are routed to ground level and equipped with ventilation cowls. They let the air in to the purification process as well as making it possible to inspect and maintain the pipe system.

• The ventilation of the drain pipe which leads to the closed septic tank is also routed to the house's ventilation.

Drainage system • Lay the drain pipe underground from the dwelling with as even an incline as as possible without unnecessary bends.

If the waste pipe is long, it should be fitted with a flushing pipe or gully trap.

• Check the incline of the pipes by measuring using a levelling instrument, a spirit level or a water hose for example.

The incline of the infiltration pipes in particular must follow the instructions carefully.

Uponor Waste water treatment system

Pump system

• Consider the climate and likelihood of the soil freezing when determining the depth of the installation. Avoid freezing and frost damage by using insulation if necessary.

• The submersible pump must be equipped with a non-return valve which prevents water flowing backwards when the pump is not in use.

• Monitor the functionality of the pump regularly. If the pump does not work the drain will soon cease to function.

• If the pump is only in use during the summer, take it out of the well for the winter and let the water drain from the pressure pipe.

• Select a large enough pump chamber so that there is sufficient volume during a power cut or pump disturbances.

• The pump must be equipped with a floating switch which starts and stops the pump automatically.

• The protective blanket of snow during winter must not be removed from tanks or pipes.

Anchoring • Anchor both the septic tank and pump chamber with the Uponor Anchoring System if the ground is marshy.

• A septic tank must always be anchored.

• Drain the pit to avoid the pressure which the water in the pit may cause.

Electricity • Mark the power cable's routing on the drawings.

• Cover the electric cable from the sensor to the house with a protective pipe.

CONSTRUCTION WORK • Use material according to the instructions for the crushed stone and filter layers.

• Place sand or fine gravel around drain pipes in the ground, the septic tank and mainfold drain. Compact well with a vibrator.

• Level out the bottom of the infiltration pit horizontally so that the water is infiltrated straight down.

Uponor Waste water treatment system

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Insulation

Maintenance • The septic tank is usually emptied at least once a year. If only greywater runs into the septic tank, emptying once a year is sufficient.

• After emptying, the septic tank is immediately filled with clean water.

• An alarm system facilitates monitoring of how often a closed septic tank needs to be emptied.

• The alarm sensor should be lifted out of the tank when emptying and rinsing are in progress.

Contact information Make sure you take the time to add the names of contacts for the drainage system to your list of contacts. This will make things easier if you have questions etc. in future.

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Inspection and maintenance instructions Septic tank

Distribution chamber

Septic tanks for greywater + toilet water must normally be emptied at least once a year. Septic tanks for greywater must also be emptied once a year but exceptions are more common here as it depends on the design sludge storage volume in the greywater septic tank.

The distribution chamber should be inspected once a year. Check the cover and lock. Fouling can occur in the distribution chamber. A small amount of fouling may be rinsed away. However with large quantities, you should try to collect most of it up and then rinse the drain out due to the risk of blockage. This is an indication that the distribution chamber needs to be inspected at shorter intervals.

IMPORTANT! When emptying the sludge, the chambers must be emptied in order: the first and then the second chamber. This is to avoid any possible movement of sludge between the chambers. After emptying, the septic tank must be filled with water in reverse order: second and finally the first chamber.

At least once a year, ideally in conjunction with sludge emptying, is it useful to visually inspect the septic tank. Check the cover and lock but also, where possible, inside the septic tank for any fouling. Rinse out as required.

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Pump and pump chamber The pump must be inspected and maintained according to the pump manufacturer's instructions. Check the non-return valve is working properly to avoid “backflow” into the system. It is important to check the cover and lock of the pump chamber and the connections between the pump and PEM pipes. If there is any doubt about the functionality/condition of the electrical connection, contact an electrician.

Infiltration pipes/collection pipes These pipes can be inspected though the ventilation pipes. Insert a stick/rod into the pipes to check whether or not water is collecting there. If water is present in the pipes, then the trench is not functioning as it should.

Uponor Waste water treatment system

Outlet well Check that the cover and lock are intact.

Is the water in this well cloudy or discoloured and smelly? If it is, the sand filter trench is not functioning as it should and action is required.

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A high water level may be due to a temporary or constant change in ground­ water conditions. These must be monitored until the water subsides. If there is still water in the pipe when the water level should normally be low, the system must be drained. Check that the ventilation pipes and the ventilation cowls are not overgrown.

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Uponor infiltration module system

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There are a number of different standard system solutions for Uponor's infiltration module system with gravity: • Integrated pump systems in septic tanks for infiltration and sand filter trenches • Separate pump systems for infiltration and sand filter trenches

286

• Infiltration installation with infiltration modules • Sand filter trench system with infiltration modules In addition, Uponor can customise solutions based on plans or other requests.

Uponor Waste water treatment system

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Uponor infiltration modules provide a good biological environment.

General The infiltration modules are used instead of the spraying layer in a conventional infiltration or sand filter trench. The performance of the infiltration modules makes it possible for the area of the trench to be reduced, which is an advantage for many reasons, including if the plot space is limited.

The infiltration modules are used as a second step when treating sewage from an individual property. As a first step, the sewage is treated in Uponor's septic tank, where it is separated from solid particles when, during a slow and laminar flow, it passes through the three chambers.

Uponor Waste water treatment system

After the septic tank, the flow is divided up in the distribution chamber between the infiltration pipes, which in turn distribute the sewage across the infiltration modules.

Due to the mesh pipes in the infiltration module being constructed from a number of spirally wound threads, a large surface is created for the bioskin to grow on.

The thin mesh also allows the air to pass freely through the module, leading to increased oxygenation. The total skin from the mesh pipes amounts to 16 m2 per linear metre of the sand filter trench,

287

which provides a good margin for the bioskin to break down the remaining pollutants in the waste water.

A site plan of the area around the system should be available as planning documentation.

The thin mesh on the mesh pipes also reduces the risk of clogging if sludge movement should occur. The infiltration modules are separated from surrounding backfill deposits by a geotextile which is laid over infiltration pipes and filter modules.

The parameters that play a decisive role in the performance of the installation are: • the quality of materials in the ground that will discharge the treated water • the groundwater table where the system is to be installed • safety distance from lakes, watercourses and streams • the incline of the site • distance to source of water supply • distance to road and property boundary • local regulations

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The depth of the groundwater table often requires the infiltration trench to be laid fairly shallowly. This means that any loads of earth are not distributed over the ground but load the filter modules fairly directly. This means that the area above the filter modules must be shielded from all forms of traffic as well as point loads.

Planning Planning and approval before installation of the infiltration module takes place in the same way as for conventional infiltration. An application must be made to the local environmental health department.

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A. Sewer pipes

C. Distribution chamber

Route the sewer pipes from the house to the septic tank and lay them firmly on a compacted bed of sand. Inclination at least 1â&#x20AC;&#x201C;2 cm/m. Gully traps must be placed on long pipework >25 m.

Balance the drain on the sand bed.

There are control units in the distribution chamber which can be adjusted so that an exact distribution of water is obtained.

An even distribution over the entire bed extends the service life and the degree of treatment. Damping in the bottom prevents uneven distribution in the event of a surge.

B. Septic tank The septic tank must be balanced on the sand filter trench. If it is placed on marshy soil it must be anchored. Adjust the neck of the inspection cover to the relevant laying depth.

D. Distribution pipes Lay the distributor pipes with an incline of 0.5â&#x20AC;&#x201C;1 cm/m between the distribution chamber and the infiltration module trench.

Max. laying depth is 1.5 m from the centre of the tank to ground level In a septic tank with integrated distribution, the control units are located on the outlet. You can adjust these so that an even distribution of water is obtained in the infiltration pipes.

A

B

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How to install an infiltration module system

E. Infiltration module Place the infiltration modules in a row after each other in the pit. The incline must be 0.5â&#x20AC;&#x201C;1 cm/m lengthwise. They must be

C

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D

E

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balanced laterally. Connect the two spray pipe passes to the distributor pipes and place them in the "valley" between two mesh pipes as shown in the picture.

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Notice that the green stripe on the pipes must be turned upwards (and the outlet holes thus straight down) and the incline of the pipes must be 0.5â&#x20AC;&#x201C;1 cm/m. Fix the

Infiltration pipe

infiltration pipes by tying them securely to the mesh pipes as shown in the picture.

Arrange the ventilation pipes above ground at the end of the infiltration pipes using flexible bends and part of the distributor pipes. Finish by fitting ventilation cowls which protect the pipes above ground.

Binding wire

Infiltration module

290

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Dimensioning

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The dimensioning of a waste water system for an individual drainage system is based on the standard flow where a household (5 people) releases 600 litres of greywater a day (greywater = bathwater, washing-up water, laundry water), provided that WC water (toilet water) is NOT connected to the system. If this is the case, an additional 250 litres of water a day is added.

Size of the household

Number of infiltration modules

600 litres of greywater/day Bathwater, washing-up water and laundry water

6 modules

850 litres of toilet water and greywater/day Bathwater, washing-up water, laundry water and toilet

8 modules

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Positioning with regard to the groundwater table In order to ensure the effectiveness of the purification, the vertical distance between the infiltration surface and the highest groundwater table must exceed 1 metre.

The piping must be laid at a depth that corresponds to the highest acceptable groundwater table.

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It may be necessary to install screen drainage piping upstream from the

infiltration system in order to lower the water table when there are high groundwater flows.

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Uponor Waste water treatment system

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Infiltration trench – size and design

Length of the pit

Width of the pit

The approving authority will often require a particle size or “grading” analysis of the surrounding soil in order to determine the soil particles' size distribution and with that, the ground's capacity to allow the treated water to pass through it.

• min. 0.6 metres, depending on the soil's permeability

Width of the pit (metres)

• for a greywater system – 8 metres • for a toilet water and greywater system • 10 metres

In order to divert the treated water to the surrounding soil, the surface area and permeability of the material beneath the modules need to be sufficient. Under­ neath the modules, place a 30–40 cm bed of sand filter trench sand (particle size 0–8 mm) at the bottom of the pit. The width of this bed is determined by the type of soil already on the site.

Uponor Waste water treatment system

5 4,5

Width

5

4 3,5 3

3

2,5 2

2

1,5 1 0,5 0

1 0,6

0,7

Gravel

Fine sand

Ground condition Moraine Sand moraine Silt moraine Silt loam

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Sand filter trench – size and design Number of sand filter trench modules:

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• for a greywater system – 6 modules, giving a total module length of 7.2 m.

• for a greywater and toilet water system – 8 modules, giving a total module length of 9.6 m.

Put a layer (approx. 200 mm) of washed crushed stone, size 12–24/16–32, at the bottom of the pit to collect the treated water. On top of this layer, a materialseparation course is laid to separate it from the sand filter trench sand above.

Use drain pipes to form a collection pipe, which should be laid approx. 50 mm from the bottom of the pit and with an incline of approx. 5–10 mm/m.

Treatment of the waste water takes place in the modules and in the sand filter trench sand. The depth and width of this trench should be 1,3 and 2.5 metres respectively Place non-woven fibre over the modules and sand filter trench sand in order to separate these.

CROSS SECTION

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LONGITUDINAL SECTION

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Parallel sand filter trench – size and design Number of modules for parallel sand filter trench:

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• for a greywater system – 6 modules, giving a total module length of 7.2 m.

• for a greywater and toilet water system – 8 modules, giving a total module length of 9.6 m.

Put a layer of washed crushed stone, grain size 12–24/16–32, at the bottom of the pit to collect the treated water.

Place non-woven fibre over this layer in order to separate it from the sand filter trench sand above.

Use drain pipes to form a collection pipe, which should be laid approx. 50 mm from the bottom of the pit and with an incline of approx. 5–10 mm/m. The drainage piping should be surrounded by a minimum of 50 mm crushed stone. Treatment of the waste water takes place in the modules and in the sand filter trench sand. The depth and width of this trench should be 0.9 and 5 metres respectively Place non-woven fibre over the modules and sand filter trench sand in order to separate these from the backfill material.

CROSS SECTION

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LONGITUDINAL SECTION

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Self-monitoring â&#x20AC;&#x201C; inspection and maintenance Septic tank

Pump and pump chamber

Septic tanks for greywater and toilet water (bathwater, washing-up water, laundry water and toilet) must normally be emptied at least once a year. Septic tanks for greywater must also be emptied once a year but exceptions are more common here as it depends on the design sludge storage volume in the greywater septic tank.

The pump must be inspected and maintained according to the pump manufacturer's instructions. Check the non-return valve is working properly to avoid â&#x20AC;&#x153;backflowâ&#x20AC;? into the system. It is important to check the cover and lock of the pump chamber and the connections between the pump and PEM pipes. If there is any doubt about the functionality/condition of the electrical connection, contact an electrician.

During sludge emptying, the chambers must be emptied in order: the first and then the second chamber. This is to avoid any possible movement of sludge between the chambers.

After emptying, the septic tank must be filled with water in reverse order: second and finally the first chamber. At least once a year, ideally in conjunction with sludge emptying, is it useful to visually inspect the septic tank. Check the cover and lock but also, where possible, inside the septic tank for any fouling.

Distribution chamber The distribution chamber should be inspected once a year. Check the cover and lock. Fouling can occur in the distribution chamber drain. A small amount of fouling may be rinsed away. However with larger quantities, you should try to collect most of it up and then rinse the drain out due to the risk of blockage. This is an indication that the distribution chamber needs to be inspected at shorter intervals.

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Infiltration pipes/collection pipes These pipes can be inspected though the ventilation pipes. Insert a stick/rod into the pipes to check whether or not water is collecting there. If water is present in the pipes, then the trench is not functioning as it should. The high water may be due to temporarily high groundwater conditions or temporary overloading. If there is still water in the pipe when the water level should normally be low, the system must be drained. Check that the ventilation pipes and the ventilation cowls are not overgrown.

Outlet well Check that the cover and lock are intact.

Is the water in this well cloudy or discoloured and smelly? If it is, your sand filter trench is not functioning as it should and action is required.

Uponor Waste water treatment system

Important to keep in mind

• Roll out the geotextile over the infiltration module layer as well as laterally over the trench of sand filter trench sand.

• Backfilling uses existing masses of earth. Stones that are the size of a fist and larger must be removed in order to avoid damaging piping and modules but also due to the stones' poor frost insulating ability. Backfill carefully so that no infiltration pipes or modules are displaced.

• With a gravitational infiltration system, the infiltration pipes are normally located 60–80 cm below ground, but in some cases the laying depth can naturally be shallower. However, the backfill layer should not be less than 40 cm to ensure sufficient protection against

Uponor Waste water treatment system

freezing. If the system is installed in areas with colder climates and/or is used sporadically during the period from October to March, then the minimum laying depth must be increased or frost protection measures taken, e.g. soil resistant grade insulation sheets.

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• If the system is installed in areas that have plenty of snow, the ventilation pipes must reach a height above ground that means the ventilation also functions during the winter.

• As mentioned in the introduction, the filter modules have a limited rigidity against loads of earth. If required, the area above the filter modules must be shielded from all forms of traffic as well as from point loads.

• The infiltration pipes/collection pipes can be inspected through the ventilation pipes. Insert a stick/rod into the pipes to check whether or not water is collecting in there. If water is present in the pipes, then the trench is not functioning as it should.

• Note that the house's drains must be ventilated on the building's roof, above the ridge. A vacuum valve must not be used.

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Uponor anchoring system installation

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Uponor's anchoring system has been produced on the strength of calculations and practical field testing of the tanks described in these instructions. Uponor is not liable for the product and its performance if the product is used in a different way or with other products than those described in these instructions.

Contents The anchoring system contains: • 2 x anchor plates Ø 560 mm • 1 x anchoring strap with loops • 1 x anchoring strap with latch type fastener NB! The number of anchoring systems required for the different tanks are indicated in the drawings and tables on pages 303–304.

Anchor plate installation • Thread the strap's lower loop through the holes in the anchor plate. Ensure that the strap is not twisted (Fig. 1).

• Thread the lower loop through the loop in the middle of the strap (Fig. 2).

• Pull the strap reel through the loop (Fig. 3).

• Tighten the strap so that a knot occurs (Fig. 4 + Fig. 5).

NB! Uponor's “U” symbol on the anchor plate must be facing upwards during installation, i.e. on the same side as the anchoring strap's knot.

300

Anchoring the tank • Pull the anchoring strap over the tank.

Pictures 7–10 show the position of the strap on different tanks.

• The anchor plates are installed at the same level as the bottom of the tank.

This means the size of the dug pit must take this into account. Drawings 7–10 for the different tanks provide information on the space requirements.

• After the tank has been fixed in place in the lift pit, position the anchor plates according to the drawing for each tank (Fig. 7-10). The plates must be installed at the same level as the bottom of the tank. Adjust the plate so that the strap does not become twisted.

NB! It is important that the plates are positioned far enough from the tank walls that they are beyond the plumb line from the tank wall (Fig. 6).

• Stretch the strap with the latch type fastener; only stretch until there is no more slack in the strap.

• Backfill and compact to a level of approx. 20 cm above the anchor plates.

• Stretch the anchor straps but not so much that they are lifted up from the ground.

• Backfill and compact in accordance with the tank installation instructions.

Uponor Waste water treatment system

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Fig. 1

Fig. 2

Fig. 3

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301

Fig. 5

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Fig. 4

Fig. 6

Plumb line

Tank

Anchor plate

302

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Fig. 7

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Min. 45 cm

Fig. 8

Min. 40 cm

A (m3)

B (m) C

A=

The tank's volume

2,0 1,60 2

B=

The tank's length

3,0 2,08 3

C=

Number of anchoring systems

1,5 1,28 2

3,5 2,40 4 5,0 3,20 5

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303

1010

1650

Fig. 9

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1200

Fig. 10

Min. 25 cm

A (m3)

B (m) C

0,5 0,80 1 1,0 1,35 1 1,5 2,10 2

A=

The tank's volume

B=

The tank's length

C=

Number of anchoring systems

2,0 2,75 2 3,0 3,90 3 4,0 5,20 4

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Uponor Waste water treatment system

Uponor Holding Tank 5.3 m3

Due to its limited capacity, the tank can only collect sewage. The amount of sewage collected should be as little as possible. This can be accomplished by using low flush toilets and fittings. Make sure that the pipes are routed right up to the tank if low flush toilets are used.

Rainwater must be dealt with separately.

The tank is emptied by a sludge-emptying truck which transports sewage to the treatment plant. The Uponor Holding Tank is rotational moulded and manufactured from polyethylene (PE), which allows the tank to withstand the substances that are

normally present in an average household.

The service life of the tank is more than 50 years with normal use.

Product data: · Storage capacity 5.3 m3 · Diameter 2,400 mm · Height 1,500 mm · Weight 230 kg.

Waste Water Treatment

An Uponor Holding Tank is used when it is not possible to discharge the sewage to a general sewage system or to set up an infiltration system.

The Holding Tank is supplied with a Ø 200 mm riser with Ø 110 mm inlet.

A mains-powered water supply and sewage alarm is provided.

Approvals The tank is manufactured according to Uponor's specifications for rotationalmoulded polyethylene tanks. The tank is Sitac approved.

Weight 230 kg Diameter 2,400 mm Height 1,500 mm

The holding tank has a Ø 200 mm riser with a Ø 110 mm connection pipe (* max. groundwater table is 0.5 m under the bottom of the tank). The tank must not be exposed to traffic.

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305

The holding tank is anchored with Uponor's anchoring system. Three Uponor anchoring system kits are required to anchor the tank. Each kit contains two anchor plates and one strap.

The strap's position has been marked with anchor symbols ( ) on the tank.

Installation instructions are supplied with the anchoring system. Place the tank horizontally at the bottom of the pit.

ø110

ø200

≤0,75 m

Anchoring

The pit for the holding tank should be so deep that, if required, there is space to install Uponor's anchor plates or a concrete base underneath the tank. Furthermore, there must be space for the house's drain pipes and if there is the risk of deep ground frost, there must also be space to insulate the drains. The maximum laying depth is 0.75 m above the top of the tank and the soil at the bottom of the pit must be level and compacted. The holding tank can be lifted into the pit using a rope on top of the tank or with slings and rings inside the tank. If the tank is installed on clay or bedrock, the pit must be drained in order to prevent water collecting which could expose the tank to pressure. Maximum groundwater table is 0.5 m from the bottom of the tank.

1m

1,5 m

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Pit

ø 2,4 m

Minimum overfill: 0.45 m if anchor plates are used.

Maximum groundwater table: 0.5 m from the bottom of the tank.

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Uponor Waste water treatment system

Connecting the riser

The tank may also be anchored in a concrete base. In this case, a 10 cm thick concrete base must be cast under the tank at the bottom of the pit. Cast six stainless steel anchor rings into the concrete around the tank, in the same locations as the anchor symbols on the tank. When installing in bedrock, wedge anchors are used in the same way. When the concrete has set, place a 10 cm thick layer of sand above it and position the tank horizontally on the sand. Place the straps over the tank, attach them to the rings and tighten using a latch type fastener.

Remove the protective cover from the tank, apply a little grease and insert the riser pipe into the seal. Push down the pipe and ensure that the inlet connection is correct. The connection between the riser pipe and the tank must be horizontal in order to achieve maximum leakproofness. Turn the riser pipe so that the connection can be coupled to the house's drain on its side and connect the pipes. Ensure that the riser pipe is balanced during backfill. Cut the riser pipe to the correct length so that the cover is at a suitable height in relation to the ground level.

Uponor Waste water treatment system

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Anchoring in a concrete base

307

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Anchoring with anchor plates.

Concrete base 2.8x2.8 m or Ă&#x2DC; 3 m

Backfilling the pit

Child safety

Use stoneless sand for backfilling. Spread out the sand evenly and compact it carefully in layers approx. 20 centimetres thick. Use water or a stick to compact the sand in the central hole of the tank during backfilling. If required, use insulation plates to protect the tank and waste water from frost.

Ensure that the cover for the emptying pipe is always securely in place to avoid accidents involving young children and animals. Tighten the cover so hard that a lever is needed to loosen it. Even greater safety can be achieved by e.g. laying a heavy plate over the cover, using a lockable covering or drilling a hole through the side of the cover and the pipe thread and inserting a self-tapping screw there.

90°

308

Marking tape

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Installation instructions for holding tank 10 m3â&#x20AC;&#x160; Increase the volume through combination

By combining two Uponor holding tanks measuring 5.3 m3 each, a tank is formed with a total volume of over 10 m3. Place

Uponor Waste water treatment system

the tanks next to each other and join them with a 160 mm connecting pipe according to the installation instructions below. The waste water from the house runs into the first tank. When that one is full, the waste water runs into the second tank. When the second tank has also been filled, both tanks are emptied.

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If all waste water from a property is routed to a sealed container or if toilet use is extensive, a holding tank with a larger volume is generally required.

309

Pit

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Dig a shared pit (minimum base area 7x3.5 m). Level out the bottom of the pit horizontally. Dimension a pit depth so that the anchor plates have space at the bottom of the pit and the drain pipe that leads to the first tank can be cov-

ered with soil and insulated if required. Level out and compact the bottom of the pit. The tanks can be lowered into the pit using the rope on top of the tank or with lifting ropes attached to the lifting loops on the tank.

NB! The maximum laying depth is 0.75 m measured from the top of the tank.

If the tank is installed on clay or bedrock, the pit must be drained in order to prevent any water that collects from loading the tank.

The groundwater table may reach a maximum of 0.5 m above the bottom of the tank.

Holding tanks must always be anchored.

1000 mm

2400 mm

310

Ø 160 mm 1% mm

1000 mm

1500 mm

1400 mm

Groundwater table max. 500 mm

Ø 200 mm

max.

750 mm

Picture 1 Ø 110 mm

1000 mm

2400 mm

Uponor Waste water treatment system

The tanks must be located somewhere where there is no vehicular traffic. However it is important to ensure that the sludge-emptying truck can empty the tanks. When holding tanks are used, the house's drains must be ventilated on

the building's roof, above the ridge. Follow the local authority's regulations when the holding tanks are placed on the plot. The regulations concern, for example, the safety distances to watercourses, wells, ditches or neighbouring plots. Place the tanks at the

bottom of the pit as shown in Picture 2. The distance between the tanks must be at least 1 m so that the backfilling can be compacted. Position the tanks so that the inlet “in” to tank 1 and the outlet “out” from tank 2 align with each other (Picture 2).

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Installing the tanks

Outlet area

Picture 2

Inlet area

Tank 1

Tank 2

Anchoring Anchor the holding tank with the Uponor anchoring system.

Three anchoring kits are required to anchor the tank.

Each kit contains two anchor plates and one strap. The positions of the straps have been marked with anchor symbols ( ) on the tank. Installation instructions are supplied with the anchoring kits.

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311

Installing the pipe connecting the tanks

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Drill a hole in the inlet area “in” in the first tank with a 165 mm drill bit. Use the aiming point (Pictures 3 and 4). Drill a hole in the outlet area “out” in tank 2 so that the intermediate pipe's incline is 1%. The outlet aiming point is located exactly 100 mm lower than the inlet aiming point. If the distance between the tanks is 1 m, drill a hole in tank 2 at a level 10 mm lower than the hole in tank 1.

In this case, mark this aiming point 90 mm (100 mm minus

Cut a 300 mm long piece of the intermediate pipe (Ø 160 mm, 2 m) at the socket end. Sand the end of the cut pipe and bevel with a rough file for example. Slide the socket end in through the feed-through seal in tank 2 so that the socket is in contact with the feed-through seal (Picture 6).

Remember to use a lubricant.

Measure the distance between the socket and the hole in tank 1. Cut the intermediate pipe so that the length is the distance + 300 mm. Sand down the end of the pipe. Slide the pipe in through the feed-through in tank 1. Pull the pipe backwards and slide it into the socket in tank 2.

Picture 4

“In”

1400 mm

Picture 3

10 mm) above both aiming points on the tank (Picture 4) and drill the hole. Install a feed-through seal in the holes (Picture 5).

Picture 5

1390 mm

“Out”

Picture 6 312

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Remove the protective plug for the riser pipe from the first tank. Lubricate the seal (image 7). Install the riser pipe's socket in the seal. Push the pipe down (Picture 8). The connection between the riser

pipe and the tank is narrow in order to achieve an absolutely leakproof connection. Align the riser pipe's branch towards the house's drain and connect the drain pipe (Picture 9).

Install the second tank's riser pipe in the same way. Plug the

Picture 7

second tank's 110 mm inlet connection with a 110 mm plug.

Ensure that the riser pipes are vertical during backfilling. If required, cut the riser pipes so that the screw cap protrudes slightly above ground level.

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Connecting the riser pipe and drain pipe

Picture 8

Picture 9

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313

Backfilling the pit

in layers approx. 20 cm thick.

Compact the filling sand in the tank's central hole with water or an internal vibrator.

If required, protect the tank and drain pipe against frost/ ground frost with sheets of insulation.

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The sand used to fill the pit may not contain large stones.

Spread the filling sand evenly and compact with a vibrator

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Uponor Waste water treatment system

Assembly instructions Mount the outdoor unit (1B) on the cover of the septic tank's emptying pipe. The indoor unit or the display (2) may be installed anywhere in the house, although it is recommended that you install it as close as possible 1

to the septic tank. Each outdoor unit (transmitter) and display (receiver) are coded in pairs, ensuring that neighbouring alarms cannot interfere with each other and give rise to incorrect level alarms. Wherever the alarm is 2

F

serviced, both units must be returned.

NB! When testing the functionality of the alarm, the sensor's electrodes (1A) must be submerged in liquid for at least 90 seconds before the alarm is activated.

3

5

B

A E

A B

B

D

C C

15 cm

A

D

4

6

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E

A

G

Testing the radio link's range and the sensor's functionality This test is recommended if the distance between the outdoor unit (1) and the alarm (2) exceeds 70 m, or if the radio link is otherwise obscured by buildings or similar structures. To facilitate the testing of the alarm's functionality, the alarm's normal 90 second delay is disengaged during the test programme.

Activating the test programme Loosen the nut of the cable feedthrough (1C) and loosen the pipe's plastic cap (1D). Remove the circuit board from the pipe (1B) (carefully pull the antenna). Activate the test programme by pressing and holding the button on the circuit board (3A) down for at least 5 seconds. Locate the outdoor unit (1) close to the installation site. Locate the display (2) in the desired installation site in the house. Connect the mains adapter to the display (2C) and to the mains socket. The radio link is OK if the green LED light (2B) flashes approx. once a second. If the link does not work, the light flashes (2A) erratically or “jams”.

If you wish to monitor the sensor's functionality, submerge the sensor's electrodes (1A) in liquid or shortcircuit them with a metallic object such as a coin, whereby the FULL

alarm on the display is immediately activated (2A). The test programme is terminated automatically after approx.10 minutes or by pressing the outdoor unit's push button (3A).

Installing the outdoor unit Drill a hole measuring approx. 45 mm in the cover of the emptying pipe (4), secure the plastic socket to the hole (4) using the nut (1F). Ensure that the nut for the sensor cable's feedthrough (1C) is tightened. Thread the sensor and the cable (1A) with the adjuster sleeve (1E) through the setting collar, push approx. 60 mm of the protective pipe (1B) firmly into the sleeve and tighten the jam nut (1G).

Adjusting the sensor's position in the tank The sensor (1A) hangs freely from the fastening cable. When the sensor's electrodes come into contact with the liquid, the level alarm is activated.

The height of the sensor is altered by adjusting the length of the cable loop in the adjuster sleeve (1E).

You should try to allow for an “emptying time” of one week after a FULL alarm. A guideline value is the installation in Fig. (5).

Installing the display (2)

installation in close proximity to metallic surfaces as these can affect the radio link's functionality.

Open the display's cover (2) and attach the underside of the casing to the wall with the screws supplied.

Connect any control cable for external alarms to the alarm relay's terminal blocks on the circuit board (6A).

Close the display's cover and connect the mains adapter to the DC plug (2C) and also to a 240 V mains connection.

Changing the battery in the outdoor unit When the voltage in the outdoor unit's (1B) battery (3B) is low, the LED light “LowSign/Bat” will flash (2E) and a warning tone from the display's buzzer will be heard. This means that it is time to change the battery. (Battery model 123A, 3V lithium camera battery).

Loosen the plastic socket's jam nut (1G) and loosen the pipe (1B) from the socket. Loosen the nut for the cable feed-through (1C), loosen the pipe's plastic cap (1D) and carefully remove the circuit board from the the pipe (3). Remove the old battery from the battery holder (3B). Use a tool such as a small screwdriver to help you. Put the new battery in the holder.

NB! Remember to check the polarity!

Install the display (2) in the desired location in the house. Install as close to the outdoor unit as possible. Avoid

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Operating instructions The numbers in brackets refer to the picture.

The Uponor wireless water and waste water alarm consists of two parts:

1 2 3

Waste Water Treatment

A transmitter unit that is installed on the cover of the tank's emptying pipe.

A sensor is connected to this which monitors the liquid level in the tank.

The receiver unit with visual and audible alarms (see picture) which can be installed anywhere in the house.

The receiver is sent updated tank level information every few minutes.

In normal mode, only the green LED light (2) on the receiver unit is lit continuously.

When the liquid level in the tank rises to the point where the sensor's electrodes are submerged in liquid, the FULL alarm is activated. The red LED light flashes during a FULL alarm (1). The internal buzzer and the alarm relay are activated. This means that it is time to empty the tank. The alarm relay can be connected to an external alarm such as a GSM modem for the automatic ordering of emptying service (see installation instructions).

To avoid false alarms, the level sensor has an activation delay of approx. 90 seconds.

If you press the ALARM RESET button (4) the buzzer is switched off and the alarm relay deactivated. The red LED light (1) stops flashing and stays continuously lit. When the tank has been emptied, the receiver reverts automatically to normal mode.

The level sensor automatically monitors the radio link's functionality. If the receiver has not been updated by the transmitter within approx. 30Â minutes, the red Low Sign/Bat LED light will flash (3) and the warning buzzer will be activated.

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If this fault occurs, ensure that the outdoor unit is not mechanically damaged and that its radio output signal is not otherwise impaired (e.g. by snow, vehicles, etc.). The fault may also signify that the battery in the outdoor unit needs to be changed. The battery normally has a service life of up to 10 years. To change the battery see the installation instructions.

Pressing the ALARM RESET button (4) silences the buzzer. The warning light (3) remains lit until the fault has been corrected.

The level sensor also automatically detects the sensor's functionality.

If the communication between the sensor and the outdoor unit is broken, the green LED light on the receiver (2) flashes instead of staying continuously lit.

There is a special test programme for testing the radio link's range and the sensor's functionality (see the installation instructions for further details).

Uponor Waste water treatment system

Waste Water Treatment

Uponor Infrastructure UPONOR small sewage treatment plants and Phosphorous removal solution

Efficient waste water treatment by small sewage treatment plants or phosphorous removal systems

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Waste Water Treatment

8.2 Uponor Small Sewage

Treatment Plants High operational reliability

Eco-friendly

By combining a standard sludge separator with a process tank that has no moving parts or electrical components, we have achieved a high level of functional reliability. This simple and reliable system is the result of many years of development work. Thanks to its simplified technology, it has been possible to design the small sewage treatment plants as a reliable and cost-effective purification system.

Plant nutrient substances precipitated during the process are held in the sludge and thereby available for further refinement.

High grade purification The Uponor Small Sewage Treatment Plants are based on SBR technology, combining biological purification with chemical precipitation. Batch purification ensures that each batch can be cleaned under identical conditions, avoiding variations in incoming flows. Most of the phosphorous is precipitated through the addition of a flocculation agent.

The amount of flocculent dosed can be adjusted using a simple handle. The preprogrammed process parameters are tried and tested, only requiring adjustment in exceptional circumstances.

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Simple installation Installing an Uponor Mini Treatment Works is simple and can be done with minimal effort.

1. Installing the plant 2. Connecting incoming and outgoing waste pipes 3. Connecting electrical cable (230V, 1 phase) 4. Replenishment of flocculation agent 5. Starting the process (main power switch thrown) Good total economy Initial outlay and ongoing operation costs are kept low thanks to the simple and uncomplicated technology employed.

• Low electricity and chemicals consumption • Very simple installation • Minimal maintenance

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Technical data

Uponor Clean I Small Sewage Treatment Plant (SSTP)

Electricity Electricity Flow capacity Nominal flow, l/day Max flow, l/day Size of batch, l Out pumping time, min Household number

1920 2400 1180 1130 2030 1500 240 110 2,5 1 3,5

Waste Water Treatment

Measurements Width, mm Length, mm Inlet height, mm Outlet height, mm Height with riser pipes, mm Transport height, mm Weight, kg Junction size, mm Sludge volume, m3 Process volume, m3 Total volume, m3

230V 1 phase 10A 850 1050 170 13 1-7

Operating costs Consumption of flocculation chemical, l/year Consumption of flocculation chemical, dl/batch Consumption of electricity, kWh/day Consumption of electricity, kWh/year Sludge removal

40-60 0,5 0,9 App. 330 At leat once a year

Installation Depth from inlet sewer to ground level, max Depth from top of the tank to ground level, max Diameter of riser pipe

1,2 m 1,0 m 560 mm

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General presentation 1.1. General

Waste Water Treatment

The biological/chemical action Uponor Small Sewage Treatment Plants are designed to purify wastewater produced by households in permanent occupation or other residences occupied throughout the year. The batch action treatment works processes all forms of domestic wastewater (bath, dishwashing, laundry and toilet water). The system does not contaminate groundwater as its plastic reservoirs are fully sealed and treated water is only discharged into open drains or, for example, an infiltration layer after treatment. In protected groundwater areas, discharge water can be channelled outside the protected area.

Inappropriate items, such as waste traditionally the province of landfill dumps or waste classified as hazardous and potentially a risk to the plants’ biological function, may not be disposed of in the system.

1.2. Functionality The functionality of the Uponor Uponor Small Sewage Treatment Plant is based on the principle of batch purification. Wastewater is treated in batches of a predetermined quantity, each batch being purified for identical periods of time. This eliminates the effects of flow variation. In addition, the amount of active sludge in the process tank is kept at a constant level and precipitant dosing takes place in relation to the volume of the flow. This ensures that 320

all wastewater receives the same controlled treatment. The purification process is a combined biological and chemical process.

Purification process phases: • wastewater is sedimented in the sludge separation tank(s) • process tank filling • ventilation/oxygenation • precipitant dosing and mixing • initial precipitation/sedimentation • surplus sludge returned to sludge separator • second precipitation/sedimentation • treated water is removed Uponor Clean I small sewage treatment plant is designed to treat domestic wastewater from a family of one to seven persons. Uponor Small Sewage Treatment Plant 10 treats domestic wastewater from two families, max 10 people. Uponor Small Sewage Treatment Plant 15 treats domestic wastewater from three families, max 15 people. In situations where no water is being channelled into the works, the process switches to standby or maintenance mode. During this time, wastewater in the process tank is ventilated on a regular basis. This ventilation maintains activity levels amongst the microorganisms in the sludge. Wastewater and sludge is channelled out without the assistance of mechanical pumping. Below the surface of the wastewater there are no moving parts that require servicing. The air use for the various functions comes from an air pump located in the switch cabinet above ground.

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Uponor Clean I Small Sewage Treatment Plant For a single family's wastewater.

Indoor display panel

Control unit

Waste Water Treatment

Desludging

Chemical tank

Inlet Outlet Processing tank Settling tank

Sampling chamber

trench

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Uponor Small Sewage Treatment Plant 10 For two families' wastewater.

Sludge separator 2 x 1 m3

Process tank 2 m3

Waste Water Treatment

Pre-sludge separation tank 2 m3

Uponor Small Sewage Treatment Plant 15 For three families' wastewater

Pre-sludge separation tank 2 x 2 m3

Sludge separator 2 x 1 m3

Process tank 2 m3

A

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Planning

Take the following considerations into account when siting the plant on the property: • local regulations and instructions set down by the environmental office • selection of discharge site and discharge method • distance from the discharge site to watercourses, wells or drinking water extraction sites • distance to bedrock • water table level and direction of flow • elevation and ground surface appearance • protective distance to road, neighbouring property boundary, etc.

• proximity to road, allowing sludge emptying to be carried out • the works must be sited so that no vehicle traffic runs over it.

Take the following factors into consideration when installing the works: • Plan the discharge so that there can be no backflow into the works.

• Position the switch cabinet so that the indicator light is easily visible.

Check that an appropriate wastewater flow rate has been achieved. Maximum flow rates are • Uponor Clean I small sewage treatment plant: 1.0 m3/24 hours • Uponor small sewage treatment plant 10: 2.0 m3/24 hours • Uponor small sewage treatment plant 15: 2.3 m3/24 hours

Waste Water Treatment

Ask the environment and health protection department of the local authority for advice when planning a waste system for a property.

Install the waste pipe underground from the property, laying it as evenly as possible and without unnecessary bends.

Ventilation of the property's waste must be routed to the roof of the property. Fit the ventilation pipe outlet a good way above the roof ridge and as far as possible from the supply air intake. Use of vacuum valves in the ventilation pipe is not permitted.

In instances where there is a risk of extensive ground frost, insulate the tank and other exposed parts with a ground sheet (or equivalent).

Rain water, surface water and drain water may not be channelled into a batch processing treatment works.

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Waste Water Treatment

In the case of new builds and properties where repairs or renovation works are being carried that are subject to the granting of building permits, a permit application must be made to the local planning authority or a planning application must be submitted. The application must be accompanied by a plan of the wastewater treatment system. This plan shall be compliant with the ordinance applicable to wastewater treatment in the locality in question.

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The plan should contain the following: • site plan showing the location of the plant and wastewater discharge • cross-section drawing showing plant works, waste pipe and discharge levels • description of plant showing the treatment plant’s installation instructions, function principles and service functions. On the basis of this plan, the local authority is able to assess suitability of the system and associated equipment for the proposed site.

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Installation and Commissioning of Clean I Dimension the width and length of the pit so that there is at least half a metre of working area around the tank(s). For standard installations, the pit depth required for the small sewage treatment plant is about 2.0 m. For deeper installations, see the section entitled 'Extension of riser pipes'. If the tanks need to be anchored so that they are not lifted by high water table levels, the anchoring plates will require a gap of approximately 60 cm on both sides measured from the outermost point of the tank wall.

Installing the tanks Level and compact the bottom of the pit with gravel or sand. Check that the bottom of the pit below the tanks is level.

Attach the lift lines to the sides of the tank (the lifting points are marked with labels), and lower the tank(s) down onto the levelled layer.

Anchoring the tanks If the ground is made up of a clay soil, or if the water table level is high, it is important that the tanks are anchored. This can be done using the Uponor Anchoring System.

In pits sunk into bedrock, securing straps must be attached to anchor slippers.

Drain pits in clay soil or bedrock so that any collecting surface water does not lift the tank. The Uponor Anchoring System makes process of anchoring tanks in demanding locations quick and simple.

Waste Water Treatment

Digging a pit

The anchoring plates must be positioned level with the bottom of the tank and fully outside the plumb line from the tank wall. Pull the securing straps over the tank and secure them in the anchoring plate eyelets. Compact a 20 cm thick layer of sand over the anchoring plates.

The securing straps can then be tightened. Finally, fill in the pit, compacting as you go.

Connecting the tanks (Uponor Small Sewage Treatment Plant 10 and 15) Fit the Ă&#x2DC; 110 mm connection pipe and the Ă&#x2DC; 75 mm ventilation pipe that come with the system between the purification tank and the pre-tank as shown in the installation drawing on pages 6-7.

Use Uponor lubricant (or equivalent) to make it easier to insert the pipe through the seal.

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Anchorage using the Uponor Anchoring System Pre-tank:

Settling tank:

Lifting points

min.

30 cm

Waste Water Treatment

1200 mm

min.

30 cm

Waste connection Connect the waste feed from the property to the treatment works inlet using the Ă&#x2DC; 110 ground waste pipe and connect the Ă&#x2DC; 110 ground waste pipe to the treatment works outlet. Purified water is normally channelled to the nearest open ditch or is sent to an after treatment stage. The outlet must be sited so that there can be no backflow into the treatment works following heavy rain, spring flooding, etc. For information about suitable discharge sites, consult your local authority's environment and health protection department.

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Power cable connection Q1 L1

Power supply 230 V AC 50 Hz Max fuse 10 A

N

X10 PE

1 2 3

Backfilling the pit Backfill the pit around the treatment works with sand or gravel that contains stones no larger than 20 mm. Compact the backfill in layers of 15-20 cm. Mechanical compaction must not be used in areas above the tanks or interconnecting pipes.

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1. Lift the lids off. The riser pipes, control unit, precipitant reservoir and other parts are stored inside the first part of tank.

2. First remove the carton with installation supplies, and after that the precipitant reservoir.

3. Then remove the control unit.

4. Separate the riser pipes from each other.

5. Place the sealing rings in the riser pipeâ&#x20AC;&#x2122;s both ends. NB! No lubricant can be used.

6. Screw the riser pipes into the tank.

Tighten the screws simultaneously from both sides of the pipe.

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Waste Water Treatment

Installation of riser pipes, Clean I

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Riser pipe extension, Clean I

Waste Water Treatment

Normal installation depth is about 0,6 m.

If the plant must be installed deeper than normally required, the plant’s riser pipes must be extended.

1. Cut the riser pipes at the marked „Cut off line“.

2. Use an Uponor 560 mm extension pipe and cut it to the appropriate length (max lenght 1,0 m). Fit the sealing rings on the first groove on each end of the pipe.

3. Lubricate the lower sealing before installing the extension pipe (about 20 cm) until it reaches the stop mark.

4. Lubricate the upper sealing before installing the cut off riser pipe. The extension pipe is pressed approx. 20 cm inside the riser pipe. NB! Maximum and installation depth, measure from the inlet pipes bottom to the ground surface, is max 1,2 m.

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Waste Water Treatment

5. Install the lids to the riser pipes and screw them tight with bolts and nuts.

Installing the switch cabinet, Clean I

2. Secure that the hose are not twisted or bended.

1. Install the air hose by pushing them to equivalent coupling. Secure that the hose are pressed to the bottom. NB! Follow the color codes at the bottom of the switch cabinet. In the couplings, there are similar color ring than the color of the hose. Red hose goes to red coupling etc.

3. Lower the control cabin inside the riser pipe.

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Installing the precipitant reservoir

Waste Water Treatment

1. The yellow hose is attached to the reservoir, check that it is attached in the right place of the control cabin.

2. Lower the reservoir inside the riser pipe.

Eletrical Cable

1. Install the connection box beside to the riser pipe. Professional electrician is recommended for connecting the cables to the plant and inside the house to the main electrical centre. The cable must be fitted with an earth fault breaker. In areas that are subject to frequent lightning storms, we also recommend to install an over-voltage protection system.

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2. Press the air hose to the coupling in the lid. The hose supplies the air to the control cabin.

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Backfill the pit. Leave at least 10 cm space between the ground surface and the lid to secure the functions of wireless alarm system and supply air intake.

Waste Water Treatment

3. Where there is a risk of extensive frost, the tanks and other frost-sensitive objects must be protected using insulated ground sheets (e.g. 100 mm Styrox). Do not remove snow accumulation covering the tank during the winter, except for the purposes of servicing the system.

Commissioning

1. Lift the reservoir from the tank and fill the reservoir with Uponor precipitant (15 litre). Use protective gloves and goggles when handling precipitant. Put the cork back to the reservoir. Check the information on precipitant from the canister.

2. Uponor Clean I small sewage treatment plant is ready for use.

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Commissioning of wireless alarm system Range test In order to find the best location for the display panel, it is recommended to test the range of the radio signal.

Waste Water Treatment

1. Switch on the control cabin while the display panel is switched off. If the control cabin is already connected, unplug the cable and plug it again.

2. Switch on the display panel and start the coupling of the units by pressing the OK button over 5 seconds.

Install the display panel in best place discover by the range test. Plug the cable and the display panel. Note that the control cabin (transmitter) and the display panel (receiver) should be situated no more than 70 m apart in a way that the display panel is as close as possible to the small sewage treatment plant. Do not place the display panel in a place where other buildings or equivalent can prevent the wireless connection.

NB! The following steps should perform without interruption.

3. When coupling has done successfully, the control cabin is automatically switched on to range test mode. During the test there might flash three colors in the display panel: a. Green = good connection b. Yellow = moderate connection c. Red = no connection or poor connection Figure 7.2.1 4. The range test ends automatically after 15 minutes. Test can be interrupted by pressing the OK button from the display panel or by pressing the test button on the control cabin.

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Turn on the plant by connecting the electric coupling to connection box.

The control cabin searches the display panel for 5 minutes to create the wireless connection (â&#x20AC;&#x153;P---â&#x20AC;&#x153;sign will flash in the display of the control cabin). Go to the display panel.

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If the connection is not formed the wireless connection light is red. In such a case, try again like described earlier.

Location change of the display panel may help to form the connection. Check that the distance between the panel and the control unit is not too long and there are not any buildings to prevent the radio signal.

Waste Water Treatment

Activate the display panel by pressing the OK button at least 5 seconds.

Lock the tankâ&#x20AC;&#x2122;s lids. Waste water system is now ready to use.

Figure 7.2.2

Figure 7.2.3

After the 5 seconds the wireless connection sign starts to flash. The connection is now forming. Within 5-10 minutes, the wireless connection sign stops to flash and the green OK light go on.

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The usage Daily operations of the small sewage treatment plant are followed by the display panel inside the house. More accurate observations can be made by checking the switch cabinet inside the plant.

Waste Water Treatment

The display panel There are four functions in the display panel: • Four alarm symbols • One reminding symbol • Green OK sign • OK/reset button

Display panel - Alarm functions There are four alarm functions in the display panel which activates when there is a fault situation. During the alarm situations the display panel shows the following: 1. Green OK sign goes out.

2. The red sign starts to flash in equivalent sign where the fault is occurring.

An alert signal starts. (The alert signal is on 30 seconds per hour) 3. The alarm is cleared by pressing the OK button. The alarm sign stops the flashing but stays on. The alert signal stops.

4. When the fault is fixed the red light goes out and green OK light lit.

Wireless connection Display panel - The reminding function The amount of chemical precipitant is low Water level is high

Device failure in the switch cabinet Reminder of sludge emptying Normal function without interruptions (green light) OK/check button to clear the alarm

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The display panel tells when it is time to empty the sludge tank. The emptying should be within a month from the reminding sign.

1. Yellow sludge truck symbol starts to flash and the alert signal starts.

(The alert signal is on 30 seconds per hour) Green OK light is on.

2. The reminder sign is clear by pressing the OK button. The sign stops the flashing but stays on. The alert signal stops.

3. When the sludge emptying is per­ formed, the reminder is reset by pressing the test button in the switch cabinet. Press the test button over 10 seconds while the text E000 is shown in the display of the switch cabinet. The sludge truck sign goes out.

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Switch cabinet

Waste Water Treatment

Switch cabinet is situated under the lid of process tank. There is a display in the switch cabinet from which can be read the batch counter value, check the situation of the plant and observe the possible fault situation’s code. Outside the cabinet is a test button which is used to activate the display, to run the test program and clear the reminder of sludge emptying.

Figure 7.2.4 Display panel – Settings There are three switches at the backside of the display panel: 1. Alert signal on/off The highest switch is for choosing the alert signal on or off.

2. Alert signal on/off during the night time The switch in the middle is for choosing the alert signal on or off during the night time.

3. Reminder of the sludge emptying The lowest switch is for activating the reminder for sludge emptying. Whether the small sewage treatment plant is located in the area where is municipal sludge emptying, the reminder can be switched off.

Figure 7.2.5 Switch cabinet – Display When the plant is working properly, there is only a batch counter value in the display.

Functions during the fault situation The batch counter value and the fault code (letter E and the number code) are shown in the display. Ref. troubleshooting chart for Clean I. If there are multiple fault situations, all of the fault codes are shown in a row in the display.

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Condition of the plant

Waste Water Treatment

The stage of the cleaning process can be seen from the display. By pressing the test button shortly (less than 5 seconds) the stage of the process is shown in the display. There is S and series of numbers.

The result is shown 30 seconds before it normalizes back to the batch counter value.

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There will be S400 code in the display when the test phase is on. During the phase the plant is performing all the pumping functions in a row.

Function

Time

Display

1.

Pump in

20 s

S401

2.

Sludge exhaustion

20 s

S402

3.

Pump out

â&#x20AC;&#x2021;5s

S403

4.

Top reservoir

90 s

S404

Test phase

5.

Dosing the precipitant

10 s

S405

During the test phase certain functions of the small sewage treatment plant is tested. Before running the test, lift up the reservoir from its place. Look carefully the locations of each unit inside the process tank. The test run is started by pressing the test button over 5 seconds but less than 10 seconds. When the button is pressed down, the seconds are running in the display. Test button is released when the display shows S__5.

6.

Ventilation

30 s

S406

After the test phase is over, the display normalizes back to showing the batch counter value. The cleaning process also normalizes.

Clearing the reminder of sludge emptying The reminder of the sludge emptying is cleared by pressing down the test button over 10 seconds. When the button is pressed down the seconds are running in the display. When the test button is released after 10 seconds, the code E000 will appear in the display.

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Alarm

Fault code

Cause

Effects

Action

Wireless connection

E011

Power outage in the display panel

The display panel is not working

Check the power adapter

No connection

The display panel is not working

Activate the connection

Repetitive connection problems

The display panel is not working

Change the location of the display panel

Power outage in the switch cabinet

The small sewage treatment plant is not working

Check the power connection

The amount of chemical E021 precipitant is low

The amount of chemical precipitant is low in the reservoir

Phosphorous reduction impaired

Top up chemical reservoir

E031

Blockage in the pump in module

Water level is high, sludge increases

Clean the pump in module blockage

Heavy water consumption

Temporarily overload

Observe the water usage

Blockage in the discharge location/discharge pipe

Plant can not remove the water

Clean the blockage

Blockage in the pump out module

Cleaning efficiency impaired

Clean the pump out module blockage

E040

Fault in the air fan

The small sewage treatment plant is not working

Contact Uponor for repair

E041

Fault in the solenoid valve of the chemical dosing

Phosphorous reduction impaired

Contact Uponor for repair

E042

Fault in the solenoid valve of the sludge return

Sludge return is not working

Contact Uponor for repair

E043

Fault in the solenoid valve of the pump out

Pump out is not working, the alarm of E032 activates

Contact Uponor for repair

E044

Fault in the solenoid valve of the pump in

Pump in is not working, the alarm of E031 activates

Contact Uponor for repair

E045

Fault in the solenoid valve of the ventilation

Disruption in the treatment process

Contact Uponor for repair

E046

Fault in the program

The small sewage treatment plant is not workin

Contact Uponor for repair

E051

Sludge separation tank is filling with sludge

Disruption in the treatment process

Empty the sludge separation tank by calling the service provider. Clear the alarm after emptying by pressing the test button in the switch cabinet over 10 seconds.

High water level

E032

Device failure in the switch cabinet

Reminder of sludge emptying

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Waste Water Treatment

Troubleshooting chart for Clean I

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Installation of Small Sewage Treatment Plant 10 and 15 D C A

E

Waste Water Treatment

B

1. Installing risers Place the seal ring (A) on the neck of the tank (B). Lubricate the socket end of the riser (C) using Uponor lubricant.

The riser (C) must be positioned so that the text "IN" shown on the riser pipe is directed towards the tank inlet. Press the riser down so that the tank neck is fully secured in the riser socket.

Riser pipe extension, 10pe When raising, cut the riser at the "Cut off line" mark (D) in the middle of the riser.

Use an Uponor 560 mm riser pipe and cut it to the appropriate length. Place a sealing ring in the 2nd groove on each end of the riser pipe (E). Fit the lower section of the cut riser in accordance with point 1.

Fit the riser pipe and then the upper section. Max installation depth is 1 m from the water flow inlet to ground level.

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Installing the Switch Cabinet, Small Sewage Treatment Plant 10 and 15 Raising height of the switch cabinet When extending the riser pipes it may also be necessary to extend the control cabinet pillar. This is done by fitting the extension tube on the pillar and then fitting the switch cabinet on the extension tube. This longer tube can be purchased separately.

Waste Water Treatment

When delivered, the switch cabinet comes attached between the riser pipes by a pin in "transport position". Undo the two screws located inside the cabinet, lift the cabinet to the pillar and re-tighten the screws. Secure the cabling between the process tank and switch cabinet to the pillar before backfilling. Switch cabinet electrical connections must be carried out by a qualified electrician.

The switch cabinet can be turned in four different directions on the telescopic pillar.

Choose the direction that makes the indicator light most visible from the property.

Switch cabinet in transport position.

Undo the two screws and lift the cabinet.

The protective hose must be secured to the pillar using cable ties located 30 cm apart. This prevents the protective hose connection inside the switch cabinet coming loose during installation.

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Waste Water Treatment

Fit the switch cabinet to the pillar and secure the hose.

Re-tighten the screws.

Commissioning 1. Uponor Small Sewage Treatment Plant 10 and 15: Fill the sludge separation tank(s) and purification tank sludge separator with through the pre-tank riser pipe up to 2/3 of the total volume. Similarly, fill the process tank with water to approximately 2/3 of its volume.

2. Fill the 15 litre chemical reservoir located below the switch cabinet in the process tank reservoir with Uponor precipitant. Use protective gloves and other protective clothing when handling precipitant.

3. The treatment plant is commissioned once wastewater starts flowing in.

Start the treatment plant using the blue switch inside the switch cabinet.

Turn the switch to the ON position.

4. Make sure that the indicator light on the outside of the switch cabinet is on.

In some instances, it may take a full treatment cycle before the indicator light comes on. The indicator light goes out when there is a fault. Check that the indicator light is visible from the property.

5. Finally, check that the switch cabinet and tank covers are locked.

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Waste Water Treatment

Filling the tanks with water before commissioning ((SSTP10))

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Operation Dosing

Sludge return

Precipitant

Waste Water Treatment

Incoming waste

Sludge level Process tank filling

Sludge separation

Ventilation

Emptying of purified water

Process tank

Small Sewage Treatment Plants parts

2. Process tank

Main components of the SSTP: • pre-sludge separator (SSTP 10 and 15) • purification tank, including: –– sludge separator –– process tank –– chemical reservoir and dosing pump –– switch cabinet

The process tank is located in the outlet end of the treatment works below the switch cabinet. In Small Sewage Treatment Plant 10 and 15 have a volume of 2 m3 . The process tank houses all functional units for various functions. All units are connected to the switch cabinet by way of colour coded air hoses.

1. Sludge separation/emptying As part of the pre-treatment process, solid matter is separated in the sludge separation tanks using precipitation. The sludge collected must be drained at least twice a year. The sludge must only be drained out from the sludge separator.

The process tank must not be emptied.

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3. Switch cabinet The main components of the switch cabinet are: • main power switch • control computer • batch counter • valve package • air pump • start limit relay switch • electrical outlet • indicator light

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Control unit The control unit controls the entire process using pre-programmed software.

The process begins with ventilation. The process re-starts with ventilation even after a power outage. The control computer features a series of red LEDs, each of which indicates a stage in the treatment process. These LEDs are located at the bottom of the control unit.

Top line X0 = start level

X1 = pressurised dosing Bottom line Y0 = air pump Y1 = chemical dosing Y2 = sludge return Y3 = pumping out Y4 = pumping in Y5 = ventilation/agitation Air pump An air pump (55 W on the W 5pe, 80Â W on the 10pe and 15pe) supplies the necessary amount of compressed air for the various functions. The operation time of the air pump is approximately 16 hours per day when the treatment works is operating at full capacity.

Start level Once the water level in the process tank has reached start level, the treatment process begins.

Alarm level The indicator light on the switch cabinet goes out if the water level in the sludge separation tank rises above the alarm limit.

Electrical outlet There is an electrical outlet in the switch cabinet that is intended for use when the system is being serviced.

Indicator light There is an indicator light on the switch cabinet. This light remains on when the system operates normally and goes out if there is a fault. Further information about faults can be found later on by troubleshooting chart.

4. Precipitant reservoir and dosing pump

Waste Water Treatment

Main power switch The treatment plant is started using the main power switch during commissioning.

The process tank riser pipe houses the chemical reservoir. This reservoir must be topped up on a regular basis.

The number of times this needs to be done is dependent on the volume of incoming wastewater. Small Sewage Treatment Plant 10 and 15 provide a dose of approximately 1 dl/treatment batch.

The dosing pump is set to these values upon delivery.

The dosing pump is located in a niche in the bottom of the chemical reservoir. The air hose connecting the dosing pump to the system is yellow. Only precipitants recommended by Uponor must be used, in this case a solution of aluminium hydroxide.

Before use, read the chemical's safety information sheet. Aluminium hydroxide is an irritant, and you should wear protective gloves (such as washing up gloves) when handling it. If you get splashes on your skin, rinse using clean water.

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Functional units 1. Inlet module The process tank fills with pre-treated waste water from the sludge separator using air channelled into the inlet module.

The inlet module air hose is blue.

4. Sludge return After the initial settling stage, the active surplus sludge is returned to the sludge separator. The sludge return air hose is brown.

5. Discharge module

2. Ventilation and agitation module

Waste Water Treatment

The task of the ventilation unit is to oxygenate the wastewater. The bacterial culture necessary for the biological degradation process is an organic substance that requires oxygen. The same unit is also used to circulate the chemical. Adding precipitant to the system guarantees a good treatment result and separates phosphorous from the wastewater. The ventilation and agitation module air hose is grey.

3. Precipitant dosing pump The precipitant dosing pump is located in the chemical reservoir in the riser pipe.

The chemical is dosed into the treatment works using the air pump. The chemical dosing pump has a yellow air hose.

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After the second settling stage, the treated water is pumped out of the system. The outlet module air hose is red.

6. Start level The start level is the water level in the process tank at which the treatment process begins.

The start level module air hose is green.

7. High level module The high level module produces an alarm if the water level in the sludge separator goes above maximum. The high level module air hose is black.

UPONOR small sewage Treatment plants and phosphorous solution

Treatment cycle Pre-treatment of wastewater takes place in the sludge separation tank(s). Solid substances that are lighter and heavier than water are separated from the wastewater. These substances are stored in the sludge separation tank.

3. Dosing and mixing the chemical The precipitant removes phosphorous from the wastewater. It is injected into the wastewater by a short blast of air.

1. Filling the process tank

Waste Water Treatment

The process tank is filled with pre-treated water from the other sludge separation tank until the start level is reached in the process tank and the process commences.

4. Settling, return of surplus sludge and secondary settling

2. Ventilation Ventilation keeps the active sludge moving whilst, at the same time, giving the microorganisms the oxygen they require in order to break down the organic substances present and remain alive.

Solid particles are allowed to settle for a period of about 60 minutes. During settling, the water flow in the process tank is stopped and the sludge sinks to the bottom. A certain amount of "active sludge" must, for the purposes of the process, be retained in the process tank. Surplus sludge is returned to the sludge separator after each treatment cycle.

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5. Emptying of treated water Once a treatment cycle is complete, the treated water produced is discharged.

Waste Water Treatment

6. Standby and maintenance phase If the start level in the process tank is not reached after pumping in, the system switches over to standby mode. In this mode, the biological process is maintained through oxygenation/ventilation. If the start level is subsequently achieved, a treatment cycle is initiated. If the start level is not achieved, the system remains in standby mode for 72 hours after which it enters the maintenance phase. The maintenance phase starts when the process tank start level has not been reached for a period of 72 hours, e.g. during holidays. The task of the maintenance phase is to maintain the biological function of the system in situations where there is no wastewater load in the treatment works.

The maintenance phase consists of a standby mode and a ventilation, sludge return and filling phase. If the start level is not achieved after filling, a new standby phase begins, after which the process is cycled back to the beginning of the maintenance phase.

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Service

In order to ensure disruption-free operation, there are a few servicing and inspection measures that must be implemented on a treatment works at regular intervals.

Use protective gloves and follow the instructions when servicing the system.

Lock the sludge separation tank and switch cabinet covers after carrying out servicing procedures and wash the hands thoroughly.

The most important servicing procedures to be carried out by the property owner are: • filling the chemical reservoir at intervals of 1-6 months • ensuring that the installation is booked in for sludge emptying at least twice a year or when the alarm sign goes on.

The chemical reservoir is located in the process tank riser pipe. The reservoir has

a capacity of approximately 15 litres. Use protective gloves and other protective clothing when handling Uponor precipitant. Only use Uponor precipitant in the treatment works.

Visually check the chemical level in the reservoir every three months. If the chemical runs out, the reservoir will issue an alarm to the switch cabinet, causing the switch cabinet indicator light to go out.

Waste Water Treatment

Servicing procedures to be carried out by the property owner

Sludge must only be emptied from the sludge separation tanks. The process tank must not be emptied.

Once emptied, fill the sludge separation tanks with clean water to 2/3 their total capacity.

All servicing procedures, e.g. inspections, replenishment of the chemical reservoir, emptying, repairs, changes, etc., must be noted in the service logbook along with the date the procedure was carried out.

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Service agreement Upon delivery of an Uponor Mini Treatment Works, a service agreement is taken out. The agreement includes a technical inspection of the installation, carried out once a year after the delivery date.

Waste Water Treatment

Important information NB! The biological treatment process is extremely sensitive to the effects of various toxic substances, e.g. oils, strong acids, alkalis, etc.

Do not load wastewater with any of the following: • wrapping paper, newspaper, paper towels • textiles, e.g. stockings • nappies, tampons, cotton buds, sanitary towels or condoms • sand, building waste • fat, oil or other substances that form toxic fumes • petrol, solvents, paint or other flammable or explosive substances.

• pharmaceutical waste

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Sludge emptying instruction, Uponor Small Sewage Treatment Plant 10 and 15 The plant should normally be emptied of sludge twice a year.

Waste Water Treatment

Only the pre-sludge storage tank(s) and the sludge storage tank(s) are to be emptied (see below). After emptying, the sludge separation tank(s) must be refilled with water to 2/3 of its/their total volume.

NB! Only empty sludge as described below, i.e. only empty those tanks marked with arrows.

A

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Waste Water Treatment

Troubleshooting chart

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Fault

Cause

Effects

Action

Indicator light is out

A fuse has blown General power outage

Treatment works function impaired

Check fuses

Indicator light is out

Chemical reservoir empty

Phosphorus reduction impaired

Top up chemical reservoir

Indicator light is out

Light is broken

Fault messages message

Contact Uponor for repair

Indicator light is out

Leak in an air hose

Incorrect fault message

Contact Uponor for repair

High water level / indicator light is out

Overloading

Temporary increase of the water level in the process tank

Check whether the outlet pip, pump in or pump out pipes or sludge return pipe is blocked. Clean using water hose (see p. 18).

If there is no blockage, the water level will fall back after a few treatment cycles

Batch counter value does not change despite water being consumed

The plant has not been filled with sufficient water after replenishment

Batch counter value does not change despite water being consumed

Air pump damaged Logic circuit damaged

Disruption in treatment process

Contact Uponor for repair

Air pump does not work

Air pump damaged

Disruption in treatment process

Contact Uponor for repair

Strong odour in outgoing water

Air pump damaged A solenoid damaged Logic circuit damaged

Problem in treatment process

Contact Uponor for repair

Solid matter in outgoing water

Too much sludge

Process overloaded

Empty the sludge separation tanks

Wait, status will return to normal once the tank has been filled

UPONOR small sewage Treatment plants and phosphorous solution

Opening blocked process pipes If any of the treatment works' functional units (pumping in, sludge return or pumping out) are blocked, the blockage must be removed by flushing with water. Insert the flush hose through the appropriate flush opening. The openings are open

grey Ă&#x2DC; 32 mm pipe ends that can be seen by opening the tank covers. Where there are blockages, also check that there is nothing preventing outflow into the ground drain pipe after the treatment works. This should be checked at the discharge site/point for the treated water.

Mini Treatment Works 5pe: Process pipe flush openings

Flush opening 1 for sludge return

Flush opening 2 for sludge return (brown air hose)

Sludge separation

Outlet module flush opening (red air hose)

Process tank

Waste Water Treatment

Inlet module flush opening 1

Inlet module flush opening 2. Hose must be bent in the horizontal pipe (blue air hose)

Mini Treatment Works 10pe and 15pe: Process pipe flush openings Inlet module flush opening 1 Flush opening 1 for sludge return

Inlet module flush opening 2.

Hose must be bent in Flush opening 2 for sludge the horizontal pipe return (brown air hose) (blue air hose)

Sludge separation

Outlet module flush opening (red air hose)

Process tank

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Contact information

Water & Sewage Consultant/Planning Name Address Telephone

Place of Purchase/Supplier Name

Waste Water Treatment

Address Telephone

Installer/Contractor Name Address Telephone

Service Name Address Telephone

Sludge Removal Name Address Telephone

Local Authority Environment and Health Protection Department Name Address Telephone

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Uponor Clean Easy extends the service life of your infiltration/land filter trench and ensures that it achieves a high purification protection level The discharge of wastewater that has been inadequately neutralised of its phosphorous content is a major contributing factor to overfertilisation. It (overfertilisation) is the outcome of the excessive utilisation of plant nutrients, particularly phosphorous, but sometimes also nitrogen, and ultimately leads to a substantial increase in the numbers of plankton algae.

When these algae die, they sink to the bottom of the watercourses in which they grow until they are broken down. When large volumes of plankton are broken

down, they consume significant quantities of the water's oxygen content, resulting in an oxygen deficiency. This deficiency can in turn result in bottom-dwelling animals and, in certain instances, fish dying.

Extended service life When initially installed, well-built infiltration and land filter systems are compliant with current water treatment requirements. However, they have a limited service life and within 5 years the purification effect they have will reduce, unable to achieve a phosphorous reduction level of at least 70 %.

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Waste Water Treatment

The environment - our own responsibility

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Clean Easy function Chemical treatment principles Phosphorous precipitation takes place in the first tank chamber, where agitation is also carried out. Chemical sludge is stored in the tank. Water is channelled to subsequent treatment via the distribution chamber.

Waste Water Treatment

When treating phosphated water, it is important that the correct flocculent to water volume ratio is used. This flocculent must be mixed efficiently into the wastewater. In Uponor Clean Easy, the amount used is adapted to the flow, ensuring an optimal quantity. Flocculent is only added when water is used.

System maintenance A well-installed Uponor waste water system is easy to use and maintain. The property should have be furnished with updated maintenance and use instructions.

The waste water system should be used and maintained in accordance with its instructions, ensuring that the system works correctly and is compliant with all statutory waste regulations.

Clean Easy channels water to the distribution chamber, from where it is distributed to the land filter trench/infiltration system.

The chemical is dosed in the first tank chamber.

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Before installation Check the delivery and make sure that you have access to all installation equipment. The system is supplied with a 230 V 1 phase power cable.

Installing Clean Easy The pit for the tank is dimensioned so that anchoring plates can be positioned at the side of the well. The pit should be about 15 cm deeper than the bottom of the well. Spread a layer of gravel or sand along the bottom of the pit and compact the surface. Lower the tank into the pit. Check that the level of the tank is correct in relation to incoming waste pipes and that it is perfectly horizontal.

Anchoring If the ground is unstable, the tank must be anchored using the Uponor Anchoring System.

Pull the securing straps over the reservoir. Position the anchoring plates level with the bottom of the tank and fully outside the bottom area of the tank. Tension the securing straps. Cover the anchoring plates with a layer of sand about 20 cm thick. Tighten the securing straps so that they are stretched.

Anchoring

Waste Water Treatment

Installing Uponor Clean Easy

Fit the ventilation pipe outlet a good way above the roof ridge and as far as possible from the supply air intake. Finally, fill the tank with water.

Insulation Insulate the tank and other parts with insulation material if there is a possibility of frost permeating deep into the ground.

the tank

Backfilling the pit Fill around the tank with stonefree sand and compact in layers approximately 30 cm thick.

Connect the 110 mm waste pipe from the property (1-2 cm/m drop) to the tank inlet spigot.

Ventilation of the property's waste must always be routed to the roof of the property.

Fill Clean Easy with water â&#x20AC;˘ immediately after installation â&#x20AC;˘ after each emptying.

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Waste Water Treatment

Installation of switch cabinet

Fit the switch cabinet in as high a position as possible so that it is kept free from snow.

Fit the switch cabinet on the pillar. Secure the switch cabinet in position using the bolts inside the cabinet.

Connect the power cable to the switch cabinet. NB! Use a qualified electrician for this job.

1. Installing risers Place the sealing ring (A) on the neck of the tank (B). Lubricate the socket end of the riser (C) with Uponor lubricant. The riser (C) must be positioned so that the text "IN" shown on the riser pipe is directed towards the tank inlet. Press the riser down so that the tank neck is fully secured in the riser socket.

2. Increasing the height of risers When raising, cut the riser at the "Cut off line" mark (D) in the middle of the riser. Use an Uponor 560 mm riser pipe and cut it to the appropriate length.

Place a sealing ring in the 2nd groove on each end of the riser pipe (E). Fit the lower section of the cut riser in accordance with point 1. Fit the riser pipe and then the upper section.

Installing/Increasing height of risers

E

Max installation depth is 1 m from the water flow inlet to ground level.

D B C A

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Functional check after installation Fill the chemical reservoir with Uponor flocculent. Use protective goggles and gloves. Lift the chemical reservoir out of the tank riser pipe and place it on the ground beside the switch cabinet.

12 seconds, at which point the water will be pumped from Clean Easy to the filter. Check that the water is distributed evenly in the distribution chamber. The air pump stops after 390 seconds.

Place the graduated glass under the outlet pipe.

Press the "test button" again.

Check that air bubbles form around the agitation pipe in the first chamber of the tank. This indicates that flocculent is being mixed with the wastewater.

Close the well cover and the switch cabinet door. The air pump stops after 390 seconds.

Waste Water Treatment

Turn on the power in the switch cabinet. Press the "test button" and wait 120 seconds.

Approximately 40 ml flocculent will be dosed into the graduated glass. Dosing will cease after

Place the chemical reservoir back down into the riser pipe.

Connect Connect Connect Connect the red the black the green the yellow hose here. hose here. hose here. hose here.

Mounting bolts.

Test button

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Self-inspection/maintenance instruction Uponor Clean Easy In order to ensure the function of Uponor Clean Easy, the system must be inspected twice a year. Regular inspection guarantees function and extends the service life of the waste water system.

Note actions performed such as topping up flocculent levels, sludge emptying or self-inspections in the service logbook.

Waste Water Treatment

Clean Easy is fully automatic, but the level in the flocculent reservoir should be checked at least every three months. The indicator light on the switch cabinet will go out if the level in the reservoir is excessively low.

Functional check, Clean Easy This check must be performed at least twice a year and split into two sections - dosing/ pumping out and agitation. Use protective goggles and gloves.

Dosing/Pumping out 1. Lift the flocculent reservoir out of the Clean Easy riser pipe and place it on the ground next to the switch cabinet (Figure 1).

2. Place the graduated glass under the outlet pipe.

3. Press the grey "test button" and wait 120 seconds (Figure 2).

4. Approximately 40 ml of flocculent will be dosed into the graduated glass. Dosing ceases after 12 seconds.

5. The water is channelled out from Clean Easy into the filter. Check that the water is distributed evenly in the distribution chamber.

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Figure 1

6. The air pump stops after 390 seconds.

7. Place the chemical reservoir back down into the riser pipe.

Agitation 8. Press the "test button" again.

Wait 120 seconds. Ensure that air bubbles form around the agitation pipe in the first chamber of the tank. This indicates that flocculent is being mixed with the wastewater. The air pump stops after 390 seconds.

Figure 2

9. Lock the well cover and switch cabinet door.

10.The display features a counter that records how many batches of treated water have been channelled from the phosphorous chamber into the filter. Each batch has a volume of 175 litres of water.

Record the value shown on the counter each time the chemical levels are toped up.

Figure 3

Dosing adjustment If necessary, the amount of flocculent can be adjusted by opening the "grey" nut on the chemical pump (19 mm box spanner). The pump doses approximately 40 ml of flocculent.

If you need to increase the dose, lift the pipe approximately 0.5 cm, tighten the screw and dose in the graduated glass.

If this is not enough, simply repeat the procedure (Figure 3).

UPONOR small sewage Treatment plants and phosphorous solution

Distribution chamber The distribution chamber should be inspected once a year. Check the cover and lock. Fouling can build up inside the distribution chamber. If there is only a little fouling, it can be rinsed away. Because of the potential for blockage, larger quantities should be removed by collecting up most of the fouling material and then rinsing. This is a signal that the distribution chamber needs inspecting on a more frequent basis.

IMPORTANT! When emptying sludge, empty the chambers in sequence first, second and, finally, third chamber. This is to avoid any sludge moving between the chambers. Once emptied, the tank must be filled with water in the reverse order - third, second and, finally, the first chamber. At least once a year, ideally when emptying the sludge from the system, perform a visual inspection of the tank. Check the cover and the lock and also, if possible,inside the separator for any build-up of fouling.

Rinse if necessary.

Infiltration pipe/collection pipe These pipes can be inspected through the ventilation pipes.

Insert a stick/rod down into the pipes to check that there is no water present. If there is water present, the bed is not working as it should. The high water level may be the result of a temporary or permanent change in groundwater conditions. This must be followed up until the water level falls back down. If there is still water in the pipes at normal low water, the installation must be drained. Check that the air pipes and ventilator cowls are not overgrown.

Waste Water Treatment

Clean Easy /sludge emptying Clean Easy must be emptied twice a year as residual sludge can accumulate. Check the tan when topping up the flocculent level, i.e. 3-4 times a year, and request additional emptying if necessary.

Pump and pump chamber The pump must be inspected and maintained in accordance

with the pump manufacturer's instructions. Check non-return valve function in order to avoid the occurrence of a "backward flow" in the installation. On the pump chamber, it is important to check the cover, lock and connections between the pump and PEM pipe. If there is any doubt as to the function/condition of the systemâ&#x20AC;&#x2122;s electrical connection, contact a qualified electrician.

Discharge well Check that the cover and lock are intact. Is the water in this well cloudy or discoloured and has a bad odour? If it is, the land filter trench is not working correctly and appropriate remedial action should be taken.

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Uponor Phosphorous Removal Chamber - easy to install, maintain and use

Waste Water Treatment

The phosphorous chamber, which is easy to maintain, requires no troublesome filter replacement, filter materials or sand.

On the whole, flocculent only needs to be topped up 2-3 times a year. The indicator light signals when the flocculent in the reservoir is running low. Continued operation of the system is ensured by performing inspections twice a year in accordance with the accompanying selfinspection software.

Quick and simple installation The phosphorous chamber only requires a shallow pit measuring approximately 2 m x 2 m immediately after the sludge separator, along with a pipe connection for dosing and mixing that connects the first chamber of the sludge separator and the phosphorous chamber. The phosphorous chamber requires an electricity supply.

Always employ a qualified electrician to carry out electrical work!

The signal light indicates when it is time to top up Flocculent is added to the system via the chemical reservoir. A signal light indicates when it is time to top up the reservoir generally 2-3 times a year.

Signal light

Uponor's Phosphorous Chamber is very easy to use.

The well has no moving parts or electronic components.

Effective phosphorous removal • Extends the service life of the installation • Ensures that the installation complies with requirements Good economy • Quick and simple installation • Low operation costs Easy to site • Takes up little space • Low build height Very easy maintenance • Flocculent topped up 2-3 times a year • Only requires normal sludge emptying High capacity • Treats up to 4 m3 wastewater per 24 hours

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Cost-effective phosphorous removal Wide area of application

Waste Water Treatment

Because dosing is done after water consumption, the phosphorous chamber can be used by up to 5 households. The solution is also ideal for use on campsites, in schools or in similar institutions.

The maximum flow is 4 m³ per 24 hours.

Low operation costs The cost of electricity and flocculent is kept to a minimum thanks to the use of batch dosing.

800

1125

1125

1125

1750

400

1200

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Packing list - Uponor Phosphorous Removal Chamber 32 45 31 Uponor Clean Easy Plus

Waste Water Treatment

1 x well 0.5 m3 with pillar, A 1 x switch cabinet, B 1 x dosing pipe, C 2 x dosing pipe brackets, D 1 x dosing hose 10 mm, 8 m, E 1 x protective pipe for dosing hose 50Â mm, 5 m, F

2 x protective pipe seals 50 mm, G 2 x ground pipes 110 mm, L = 1000 mm, H 1 x graduated glass 100 ml, I

Uponor chemical percipitant 15 l must be purchased separately and is not included in this package!

B

C

D

E

F

G

H

I

A

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Phosphorous Removal Chamber Function Using the separate, chemically active phosphorous chamber, which is fitted between the sludge separator and the infiltration/land filter trench, the phosphorous precipitant is dosed into the sludge separator's first chamber and mixed efficiently with the wastewater. The chemical sludge is stored in the sludge separator. Water is channelled to the land filter trench via the distribution chamber.

Pumping increases the cleansing effect of the infiltration/land filter trench using the oxygenated water.

When treating phosphated water, it is important that the correct chemical to water volume ratio is used. This flocculent must be mixed efficiently into the wastewater.

In Uponor's phosphorous trap, volumes are adapted to the flow rate, ensuring that the optimal volume is always used. Flocculent is only added when water is used.

Choosing the right flocculent is important For phosphorous removal, a polyaluminium chloride-hydroxide solution is the best option. Aluminium compounds are particularly well suited for use in infiltration/land filter trenches as iron-based precipitants can produce fixed phosphorous in acid-free conditions.

should have be furnished with updated maintenance and use instructions.

The waste water system should be used and maintained in accordance with its instructions, ensuring that the system works correctly and is compliant with all statutory waste regulations.

Waste Water Treatment

Chemical treatment principles

System functionality and dosing capability can be checked using the trap's test button.

From the phosphorous trap, water is channelled to the distribution chamber, from where it is distributed to the land filter trench/infiltration system.

System maintenance A well-installed Uponor waste system is easy to use and maintain. The property

The chemical is dosed in the first sludge separator chamber.

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Waste Water Treatment

Installing Uponor Phosphorous Removal Chamber

Before installation Check the delivery and make sure that you have access to all installation equipment. Drain the sludge separator (sludge emptying vehicle). It can make the working environment more pleasant by rinsing the separator with a high pressure washer in conjunction with the emptying process. If necessary, rinse the infiltration, collection and outlet pipes. The system is supplied with a 230 V 1 phase power cable.

Installing the phosphorous chamber (Figure 1) The phosphorous chamber is to be installed after the sludge separator. The levelled bottom of the pit should be Figure 1

1,070 mm below the sludge separator outlet pipe. In order to enable sealing, there should be a gap of at least 500 mm between the phosphorous chamber and the sludge separator.

Connecting the sludge separator The outlet pipe must be connected to the phosphorous chamber inlet pipe using a 110 mm wide waste pipe. If the sludge separator has an integrated distribution chamber, fit 90/110 reducers in the 90 mm outlet pipes (Figure 2).

Fit a 45-degree bend to one reduce and a 45-degree branch pipe to the other reducer so that the 45-degree bend can be accommodated. Connect the branch pipe to the phosphorous chamber inlet pipe.

Figure 2

at least 500 mm

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Initial backfilling of the pit

Extending riser pipes

Fill the pit with sand up to the inlet pipe.

Fill around the entire well. Compact every 30 cm.

If the phosphorous chamber must be installed deeper than is normal, e.g. due to the position of the property's drain, the riser pipe must be extended. Using a saw, cut the riser along the "Cut off line" marking. Fit a 1.4 m, Ø 400 mm raiser pipe between the upper and lower sections. Each end must be fitted with a 400 mm sealing ring (in the second groove).

Old distribution chamber Connect the phosphorous chamber outlet pipe to the distribution chamber inlet using a 110 mm wide waste pipe.

Installation of a new distribution chamber Install the distribution chamber so that the outlets are at the same level as the distribution pipes. See the distribution chamber installation instructions. Connect the phosphorous trap outlet pipe to the distribution chamber inlet using a 110 mm wide waste pipe.

Note: Maximum tank installation depth, measured from the upper section of the tank body to the ground surface, is 1 metre.

Waste Water Treatment

Installation/connection of distribution chamber

Check to ensure that the chemical reservoir is not inside the riser pipe when you cut it.

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Fitting protective pipes for the dosing hose (Figure 3) The flocculent is dosed in the first chamber of the sludge separator. This ensures that the chemical sludge is retained in the sludge separator. The dosing hose protective pipe is to be fitted with a minimum 2Â % fall to the sludge separator.

Cutting point

Drill a 50 mm hole in the phosphorous chamber pipe to accommodate the protective pipe.

The hole must be drilled at least 400 mm below the top edge of the riser pipe. Drill a 50 mm hole in the sludge separator riser pipe so that there is an inclination of at least 2 %. In sludge separators with multiple riser pipes, the protective pipe must be fitted in the riser pipe for the first chamber.

Seal

Waste Water Treatment

Place the pipe seals in the holes from outside the pipe. Cut the protective pipe so that the pipe reaches about 25 mm into the riser pipe. Fit the protective pipe in position.

25 mm

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inclination 2%

at least 400 mm

Figure 3

UPONOR small sewage Treatment plants and phosphorous solution

The chemical dosing pipe is to be fitted in the first sludge separator chamber.

Figure 4

Waste Water Treatment

50 mm

50 mm

sludge separator

300 mm

water surface

Fitting the dosing pipe in the sludge separator (Figure 4)

Fitting the dosing hose (Figure 5)

Fit the dosing pipe brackets in the first sludge separator chamber near to the end of the inlet pipe. The installation height for the brackets is approximately 75 mm below the hole for the protective pipe.

Insert the dosing hose into the protective pipe. Secure the hose in the hose coupling at the upper end of the dosing pipe.

The gap between the brackets should be about 50 mm. Measure the distance from the upper bracket to the lower edge of the inlet pipe. The length of the dosing pipe should be this measurement + 300 mm. Cut the dosing pipe to the correct length and secure the pipe in the brackets. Make sure that the lower end of the pipe is 300 mm below the lower edge of the inlet pipe.

(See Figure 2 page page 364)

Make sure that the hose is securely connected to the hose coupling.

Once the hose is "tight", there should be about 1 metre of excess hose above the phosphorous chamber cover. Cut the hose to the correct length and connect it to the hose coupling on the chemical pump outlet pipe. Make sure that the hose is securely connected to the hose coupling.

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Waste Water Treatment

Figure 5

Filling the pit Backfill the pit to ground level. Form the ground so that surface water can run off.

Installing the switch cabinet (Figure 6)

Make sure that the hoses reach the bottoms of the quick release couplings.

Connect the power cable to the switch cabinet. NB! Use a qualified electrician for this job.

Fit the switch cabinet pillar in as high a position as possible so that the cabinet can be kept free from snow.

Figure 6

Fit the switch cabinet on the pillar.

Secure the switch cabinet in position using the bolts inside the cabinet. Fit the hose protection pipe in the bottom of the switch cabinet via the lead-in. This protective pipe contains hoses of three different colours.

• yellow, chemical dosing • green, start level • red, out pumping Connect the hoses as shown in Figure 6 to the quick release couplings (x 2) and the pointed end pressure monitor (x 1) in the cabinet.

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Fill the chemical reservoir with Uponor flocculent. Use protective goggles and gloves. Lift the chemical reservoir out of the phosphorous chamber riser pipe and place it on the ground beside the switch cabinet. Disconnect the dosing hose from the chemical pump outlet pipe by pressing the quick release coupling. The hose disconnects.

Pull out the hose. Place the graduated glass under the outlet pipe.

Turn on the power in the switch cabinet.

Press the "test button" and wait 90 seconds. The chemical pump administers a dose of approximately 70-90 ml of chemical into the graduated glass.

Dosing will cease after 45 seconds, at which point the water will be pumped from phosphorous chamber into the land filter trench.

Figure 7

Check that the water distributes itself evenly between the infiltration pipes.

The air pump stops after 4 minutes.

Secure the hose and lower the chemical reservoir into the riser pipe.

Press the "test button" again. Check that air bubbles form around the dosing pipe in the first chamber of the sludge separator. The chemical mixes with the wastewater inside the pipe. Close the well cover and the switch cabinet door.

The meter on the display clicks forward for every 100 litres of water pumped from the phosphorous trap to the filter trench.

Follow the meter and record the value each time.

Waste Water Treatment

Functional check (Figure 7)

Test button

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Self-inspection/maintenance instruction Phosphorous Removal Chamber

Waste Water Treatment

In order to ensure correct function of Uponor Phosphorous Removal Chamber, the system must be inspected twice a year. Regular inspection guarantees function and extends the service life of your waste installation.

Note any action taken, e.g. topping up flocculent levels, sludge emptying or any self-inspections performed in the service logbook.

The phosphorous chamber is fully automatic, but the level in the flocculent reservoir should be checked at least every three months. The indicator light on the switch cabinet will go out if the level in the reservoir is excessively low.

Dosing/Pumping out 1. Lift the flocculent reservoir out of the phosphorous trap riser pipe and place it on the ground beside the switch cabinet (Figure 1).

2. Disconnect the dosing hose from the chemical pump outlet pipe by pressing on the quick release coupling (Figure 2).

3. Place the graduated glass under the outlet pipe (Figure 3).

4. Turn on the power in the switch cabinet (Figure 4).

5. Press the grey "test button" and wait 90 seconds (Figure 5).

Functional check This check must be performed at least twice a year and split into two sections dosing/pumping out and agitation. Use protective goggles and gloves.

6. The chemical pump doses approximately 70-90 ml of flocculent into the graduated glass. Dosing ceases after 45Â seconds (Figure 3).

7. Water is channelled out from the phosphorous chamber into the land filter trench. Check that the water distributes itself evenly in the distribution chamber.

8. The air pump stops after 4 minutes.

Secure the hose and lower the chemical reservoir into the riser pipe.

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Dosing adjustment

Press the "test button" again. Wait 90Â seconds. Check that air bubbles form around the dosing pipe in the first chamber of the sludge separator. This indicates that flocculent is being mixed with the wastewater. Lock the well covers and the switch cabinet door. The display features a counter that records the number of batches of treated water that have been channelled from the phosphorous chamber to the filter. Each batch represents a volume of 100 litres of water. Record the value shown on the counter each time you top up the system with chemical.

If necessary, the amount of flocculent can be adjusted by opening the "grey" nut on the chemical pump (19 mm box spanner).

The pump provides a dose of approximately 70-90 ml flocculent when the "pipe" is pressed down in the bottom of the pump. If there is a need to reduce the dose, lift the pipe approximately 0.5 cm, tighten the screw and dose in the graduated glass. If this is not enough, simply repeat the procedure (Figure 6).

Waste Water Treatment

Agitation

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

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Waste Water Treatment

Self-check/maintenance instruction - Other Sludge separator/sludge emptying

Distribution chamber

The sludge separator for greywater + toilet water should normally be emptied at least once a year, although additional emptying may be required if you are using a flocculent as the sludge will be more voluminous. Check the sludge separator when topping up the flocculent level in the phosphorous trap, i.e.

3-4 times a year, and request additional emptying if necessary.

The distribution chamber should be inspected once a year. Check the cover and lock. Fouling can build up inside the distribution chamber. If there is only a little fouling, it can be rinsed away.

Because of the potential for blockage, larger quantities should be removed by collecting up most of the fouling material and then rinsing. This is a signal that the distribution chamber needs inspecting on a more frequent basis.

IMPORTANT! When emptying sludge, empty the chambers in sequence - first, second and, finally, third chamber. This is to avoid any sludge moving between the chambers. Once emptied, the sludge separator must be filled with water in the reverse order - third, second and, finally, the first chamber. At least once a year, ideally when the sludge is emptying from the system, perform a visual inspection of the sludge separator. Check the cover and the lock and also, if possible,inside the separator for any build-up of fouling. Rinse if necessary.

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These pipes can be inspected through the ventilation pipes. Insert a stick/rod down into the pipes to check that there is no water present. If there is water present, the bed is not working as it should. The high water level may be the result of a temporary or permanent change in groundwater conditions. This must be followed up until the water level falls back down. If there is still water in the pipes at normal low water, the installation must be drained. Check that the air pipes and ventilator cowls are not overgrown.

the occurrence of a "backward flow" in the installation. On the pump chamber, it is important to check the cover, lock and connections between the pump and PEM pipe. If there is a doubt as to the function/condition of the electrical connection, contact a qualified eletrician.

Discharge well Check that the cover and lock are intact.

Is the water in this well cloudy or discoloured and has a bad odour? If it is, the land filter trench is not working correctly and appropriate remedial action should be taken.

Waste Water Treatment

Infiltration pipe/collection pipe

Pump and pump chamber The pump must be inspected and maintained in accordance with the pump manufacturer's instructions. Check nonreturn valve function in order to avoid

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Contact information Water & Sewage Consultant/Planning Name Address Telephone

Place of Purchase/Supplier Name

Waste Water Treatment

Address Telephone

Installer/Contractor Name Address Telephone

Service Name Address Telephone

Sludge Removal Name Address Telephone

Local Authority Environment and Health Protection Department Name Address Telephone

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UPONOR small sewage Treatment plants and phosphorous solution